表土

top soil的用法和样例：

例句

If the topsoil is taken away by erosion, plants can no longer grow in the soil left behind.如果因水土流失而冲掉了表土，植物不能再在留下的土壤中生长。
The runoff sediment has higher clay content than the surface soil, andthe splash soil has higher fine sand content.通过对侵蚀上壤的颗粒组成分析表明，侵蚀对土壤颗粒具有选择性，径流侵蚀泥沙中粘粒含量比侵蚀表土含量高，溅蚀泥沙中细沙粒含量变高。

VOA慢速英语2003年-农业与经济 Soil Conservation Meth

By Gary Garriott Broadcast: July 29, 2003 This is Bill White with the VOA Special English Agriculture Report. Soil conservation efforts protect soil from wind and water that can blow or wash it away.

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VOA2003（下）-农业与经济

Mars Rover to Begin Taking Soil Samples This Week

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VOA2004（上）--各类新闻

AGRICULTURE REPORT - Cover Crops Are Good for the Soil (and

AGRICULTURE REPORT - Cover Crops Are Good for the Soil (and the Farmer) By Mario Ritter Broadcast: Tuesday, May 24, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Cover crops are

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农业与发展

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil and Crops By Gary Garriott Broadcast: Tuesday, July 05, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Many farmers im

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农业与发展

英语词汇辨析：soil & earth & land & ground

Soil、earth、ground和land都可以表示地面，但这四个词的用法有很大的区别。一起来看看吧! soil意为：泥土、土壤，尤指生长植物的土地。或国家、国土。 The trees have rooted in the rich soil. 树木在肥

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英文语法词汇

英文摇滚歌曲：Killswitch Engage - Soilborn

time will not stand still today is the day, the day of salvation living for more than just synthetic force fed existence this is my disposition I will strive for the truth time will not stand still today is the day, the day of salvation living for mo

发表于:2019-03-02 / 阅读(75) / 评论(0)

英文摇滚歌曲

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astegopteryx bambusifoliae (takahashi)