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- protective soil layer 土保护层
- Their roots help protect soil from being washed away. 它们的根帮助保护土壤避免被冲走。
- In the absence of appropriate plants to protect soil and water, once exposed on the ground floor of frozen soil in summer, a new layer of topsoil vulnerable to snow water loss. 由于缺乏适当的植物来保护水土，一旦将地下的冻土裸露于夏日，新的一层表土极易受雪水冲失。
- The particle size scope is in 0 ~ 50mm that It can test in the soil layer. 可以测试的土体的颗粒粒径范围为0~50mm。
- Soil adhesion may be reduced even if water cannot readily permeate the soil layer. 即使水不易进入污垢内层，也能降低污垢的吸附作用。
- On the nitrate-N accumulated characteristics in deep soil layer of winter wheat field in Taihang Piedmont. 太行山山前平原冬小麦田深层土体硝态氮累积特征研究
- The deposition in an underlying soil layer of colloids, soluble salts, and mineral particles leached out of an overlying soil layer. 淀积作用胶状物，可溶性盐和矿物微粒从上层土壤向下层过滤的沉淀过程
- Species number ranked in the following order: brush and herb layer > tree layer > litter layer > soil layer. 每样地的物种数量都是以灌木草本层最多，依次为乔木层、枯枝落叶层和土壤层。
- The soil layer of Rouli is 700 to 800 meters deep. Experts have verified it is the thickest soil layer on earth. 若笠的黄土层厚达七、八百米，经过专家证实，是整个地球黄土层最厚的地方。
- Remanent magnetism of soil layer is taken as a reference frame for locating hy-drocarbon seepage zone. 本文利用土壤剩余磁性作为确定烃类渗漏带的参考系。
- The soil layer of this village is rich in nutrients, and thus suitable for cultivation. 这个村庄土层里的养分肥沃，适合耕种。
- The depth of casing should ensure it can penetrate dirty soft soil layer; its bottom should be tightly sealed. 护筒的埋设深度，应确保穿透淤泥质软土层，并做好护筒底部密封。
- Trees reduce the damaging effects of wind and rain.Their roots help protect soil from being washed away.And trees do something else, they can provide grazing animals with shade from the sun. 树木可以减少风雨的伤害.;它们的根能保护土壤不被冲走
- Since August, 1998, Xinjiang area began the measure of soil layer bore stress.It was successively completed 7 stations. 摘要自1998年8月起，新疆地区开展土层钻孔应力测量，先后建成7个台。
- In notice in conserve all the year round timely and right amount water, protect soil already wet, cannot be soiled is waterlogged, before entering a winter must winter irritation. 在常年养护中注重适时适量浇水，既保土壤湿润，又不可渍涝，入冬前必须冬灌。
- Though many creatures of the soil layer are a drab grey-brown or pale and colourless, there is no reason why a few can't be bright and garish. 尽管土层中的许多生物要么是单调的灰褐色，要么体色苍白暗淡，但仍有一些色泽艳丽，甚至是色彩夺目。
- Though many creatures of the soil layer are a drab grey-brown or pale and colourless, there is no reason why a few cannot be bright and garish. 尽管土层中的许多生物要么是单调的灰褐色，要么体色苍白暗淡，但仍有一些色泽艳丽，甚至是色彩夺目。
- At harvest,root length density and treflan concentration at different soil layer were evaluated using soil auger method. 冬小麦收获后,采用土钻法在滴头附近沿垂直方向分层取样,测定各土层的根长密度和氟乐灵含量,并统计各小区的产量。
- With ecomat, soil water content was 17.4% higher in the soil layer of 0-20cm and 8.9% higher in the soil layer of 20-40cm. 研究发现，在试验地内铺设生态垫后对于土壤理化性质和植物生长指标均有影响。 0-20cm土壤含水率提高17.;4%25，20-40cm土壤含水率提高了8
- A mother naturally feels protective towards her children. 母亲对自己的孩子自然会悉心保护。
