查询词典 soil

These include pumice and tufa. 2. Lava-based soil are the product of lava flows from the volcano. 90 percent of lava-based soil is composed of basalt with the other ten percent including andesite, pitchstone, rhyolite, and trachyte.

这种土壤含有浮石和石灰华。2）熔岩为基础的土地，由火山爆发后产生的熔流产生。90%是由玄武石组成的熔岩，另外10%是中长石、松脂岩和粗面岩。

With toxicity evaluation,except 1 mg·kg-1dichlorvos、phorate and chlornyrifos,they produce middling harm to animalcule of farm soil,the rest different kinds and chroma pestcides bring lower or zero harm to soil animalcule.

通过毒性评价，除1 mg·kg-1敌敌畏、甲拌磷和毒死蜱对大田土壤的微生物为中等危害以外，其余的受试农药及浓度对土壤微生物低毒或无实际危害。

Apeak distribution of root system in maize along soil profile as following: In flare opening stage peak value of dry weight of root in 0-20cm, dry weight of root reduced quickly with the increasing soil layer thickness.

根系干重在土壤中的垂直分布情况为：在大喇叭口期以前，根系干重峰值出现在10-20cm的土层内，而后随着土层深度的增加根系干重迅速下降。

For composite foundation with compressible piles, based on displacement harmony condition, and combining with load transfer method and approximate solution of differential equation, analysis methods of linear and nonlinear interaction between piles and surrounding soil were suggested. A lot of significative results, for example availability pile length, load distribution between piles and surrounding soil, load distribution among all piles under rigidity pile-cap, load-settlement relation etc, were obtained.

对柔性桩复合地基，是基于位移协调条件，并结合荷载传递法与微分方程的近似解法—子域法，提出了变截面自由单桩与地基土、刚性承台下柔性单桩和变截面柔性单桩与地基土、刚性承台下柔性群桩与地基土线性及非线性相互作用的分析方法，并得到有效桩长、桩与基土的荷载分配及刚性承台下各桩桩顶荷载分配、荷载一沉降关系、荷载传递规律等有意义的结果。

Discarded soil field is a common damaging appurtenant project outside the route in highway construction in mountainous areas,the destructive effect of which on environment has been validated by years of highway construction. The design of discarded soil field should consider the natural,geographic,geological and social condition such as climate,landform,hydrology,hydrographic geology,engineering geology and so on.

弃土场是山区公路建设中经常出现的具有破坏性的线外附属工程，它对环境的破坏在多年的公路建设中已经得到了验证，故弃土场的设计应全面综合地考虑场区的气候、地形、水文、水文地质和工程地质等自然、地理、地质和社会条件。

Mining Subsidence ; Soil water interactions ; Super static pore pressure ; Thick aqueous soil layer.

开采沉陷；水土相互作用；超静孔隙水压力；厚松散含水层

Effect of different soil drought stress on the growth and accumulation of soluble substances of Arachis duranensis was studied by potted culture with controlling soil water content.

采用盆栽控水的方法，研究了不同土壤干旱胁迫程度与胁迫时间对多年生落花生Arachis duranensis生长及溶质累积的影响。

However,in civil engineering,friction soil mostly come into being minor principal soil arching.

在工程实践中由于桩间距的限制，土拱类型主要是以小主应力拱的形态存在。

As arenaceous plants community constructed, the organic matter and total nitrogen in the upper-level soil was increased significantly. It stimulated the increase of soil nutrition and consequently the plant growth.

3固沙新材料结合沙生植物沙米、沙蒿等固沙后，土壤有机质和全氮增加明显，有利于土壤肥力的增加，可进一步促进植物的生长。

Results also showed that the aromatization of humic substance was higher in soil applied with pig manure than the soil amended with straw.

结果还表明，秸秆和猪粪对土壤交换态Cd含量的影响还与其对腐殖酸芳构化程度的影响有关，添加猪粪比添加秸秆的土壤腐殖酸芳构化程度大。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。