http://www.jendo.org/wiki1231/index.php?action=history&feed=atom&title=%E6%9B%B2%E6%B5%81 2026-04-12T05:21:30Z 本 Wiki 上此頁面的修訂歷史 MediaWiki 1.35.14 http://www.jendo.org/wiki1231/index.php?title=%E6%9B%B2%E6%B5%81&diff=22065&oldid=prev 2016-06-08T06:43:01Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="zh-Hant-TW"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年6月8日 (三) 06:43 的修訂</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >第3行：</td> <td colspan="2" class="diff-lineno">第3行：</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===曲流===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===曲流===</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">曲流：水流在兩岸流速不均而形成的彎曲河道。</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">曲流(meanders)：水流在兩岸流速不均而形成的彎曲河道。</ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">在曲流的外側，河水流速變大，盛行侵蝕，稱為侵蝕坡（切割坡）（undercut slope）或凹岸，地勢高亢；在內側水流緩慢，盛行沖積，稱為滑走坡（slip</del>-off <del class="diffchange diffchange-inline">slope）或凸岸，地勢低平。</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">在曲流的外側，河水流速變大，盛行侵蝕，稱為侵蝕坡(切割坡)(undercut slope)或凹岸，地勢高亢；在內側水流緩慢，盛行沖積，稱為滑走坡(slip</ins>-off <ins class="diffchange diffchange-inline">slope)或凸岸，地勢低平。</ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>曲流是由凹岸與凸岸合起來的地形：</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>曲流是由凹岸與凸岸合起來的地形：</div></td></tr> </table>

丁志仁 http://www.jendo.org/wiki1231/index.php?title=%E6%9B%B2%E6%B5%81&diff=22064&oldid=prev 2016-06-08T06:30:13Z

<p><span dir="auto"><span class="autocomment">曲流</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="zh-Hant-TW"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年6月8日 (三) 06:30 的修訂</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l8" >第8行：</td> <td colspan="2" class="diff-lineno">第8行：</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>曲流是由凹岸與凸岸合起來的地形：</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>曲流是由凹岸與凸岸合起來的地形：</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>#<del class="diffchange diffchange-inline">凹岸：基蝕坡，受侵蝕不斷後退，河岸較陡。</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>#<ins class="diffchange diffchange-inline">凹岸：流速大，基蝕坡，受侵蝕不斷後退，河岸較陡。</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>#<del class="diffchange diffchange-inline">凸岸：滑走坡，堆積盛，河岸寬廣低平。</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>#<ins class="diffchange diffchange-inline">凸岸：水流慢，滑走坡，堆積盛，河岸寬廣低平。</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">鵝卵石壩一定出現在凸岸的地方，而河沙壩幾乎都出現在凹岸的地方。鵝卵石在水的底層「流動」，而且沿著凸岸走，並在凸岸後端停下來；河沙在水的表層向著凹岸的方向衝過去，如果凹岸處的河道變寬，水流變慢，河沙便在凹岸的地方沉積下來，形成「河沙壩」。</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">都江堰是2000多年前李冰父子帶領廣大民眾修築的人工渠，為什麼它能歷經2000多年呢？這其中有一個關鍵的因素就是李冰父子巧妙地利用了凸岸和凹岸的 原理。岷江的大量鵝卵石沿著凸岸被衝向了外江，但也難免有少量的鵝卵石進入內江，如果這些鵝卵石不被排除的話，將通過寶瓶口從而堵塞人工河道，李冰父子將 內江開鑿成凸岸，進入內江的鵝卵石沿著凸岸走，在飛沙堰這個地方被捲入外江，從而使鵝卵石不能在內江集結，保持了都江堰幾千年的輝煌。</ins></div></td></tr> <!-- diff cache key wiki1231:diff::1.12:old-22063:rev-22064 --> </table>

丁志仁 http://www.jendo.org/wiki1231/index.php?title=%E6%9B%B2%E6%B5%81&diff=22063&oldid=prev 2016-06-08T06:21:37Z

<p>新頁面: ===白努利原理=== 流速大的地方壓力小，流速小的地方壓力大。 ===曲流=== 曲流：水流在兩岸流速不均而形成的彎曲河道。 在曲流的外側，...</p> <p><b>新頁面</b></p><div>===白努利原理===<br /> 流速大的地方壓力小，流速小的地方壓力大。<br /> <br /> ===曲流===<br /> 曲流：水流在兩岸流速不均而形成的彎曲河道。<br /> <br /> 在曲流的外側，河水流速變大，盛行侵蝕，稱為侵蝕坡（切割坡）（undercut slope）或凹岸，地勢高亢；在內側水流緩慢，盛行沖積，稱為滑走坡（slip-off slope）或凸岸，地勢低平。<br /> <br /> 曲流是由凹岸與凸岸合起來的地形：<br /> #凹岸：基蝕坡，受侵蝕不斷後退，河岸較陡。<br /> #凸岸：滑走坡，堆積盛，河岸寬廣低平。</div>

丁志仁