Rill erosion is an important component of hillslope soil erosion.

細(xì)溝侵蝕模型是土壤侵蝕預(yù)報模型的重要組成部分。

Reading and the writing teaching should not be dead situations, but should be pours into the new water unceasingly the rill.

閱讀和寫作教學(xué)不應(yīng)是一潭死水免费无码A片国在线看视频，而應(yīng)是一條不斷注入新水的小溪午夜男女免费观看视频。

Keep your room dirty, so your mom will be afraid to come in,and then she won't take your stuff.--Geoff Rill, age 12

保持房間邋遢草久在线观看视频，這樣媽媽就不敢進(jìn)來国产精品国产亚洲精品看下卡，她就拿不走你的東西了欧美BBW撒尿特写。

In the village that curved rill looks like a silver the jade belt, is twining the entire village.

村子里那條彎彎的小溪像一條銀色的玉帶，纏繞著整個村莊欧美一级A片全视频。

This model introduces a concept of unsaturated sediment transport, reflecting the variation of rill erosion along the distance.

該模型引入了非飽和輸沙的概念久久精品国产91久久综合麻豆自制，能夠反映沿程細(xì)溝侵蝕的變化規(guī)律亚洲一区二区激情在线。

But be the best little scrub by the side of the rill .

但務(wù)必做溪流邊最棒的一棵小樹；當(dāng)不了樹就做一叢灌木

By the side of the rill

你來了欧美不卡一区二区三区手机，在春天即將破最新亚洲日韩中文字幕在线播放一区二区。。全国在线无码精品。

Then detachment rates were presented as functions of sediment concentration and rill length.

實驗結(jié)果在15°，20°无码欧XXXX在线观看，25°時表現(xiàn)出很好的顯著性bbixx.com。

If you can't be a pine on the top of the hill, Be a scrub in the valley-but beThe best little scrub by the side of the rill?

如果你不能成為山巔上的一棵挺拔的松樹，那就做一棵山谷中的灌木吧日韩欧美A片一级久久72，但要做溪邊最好的灌木国产色视频一区！

It showed the soil erosion was changing from sheet erosion to rill erosion.

表明坡面由片蝕為主逐漸過渡到片蝕向細(xì)溝侵蝕轉(zhuǎn)變的階段。