土的例句大全

It improved the soil granular structure in a short time, since high molecular compounds naturally degraded into organic matters.

同时，高分子经过自然降解转化为有机物质，可在较短时间内改善土壤结构。

The granular structure is enhanced by 78. 5%, 79. 9% and 69. 3% respectively.

红壤中团粒结构依次提高78.5%、79.9%和69.3%，改良土壤效果较好。

There is no significant difference of starch granule number distribution of wheat among different soil textures.

3种质地土壤上小麦淀粉数目各粒径范围内无显著差异。

Construction Measures of the Shield through Shallow Covering Section under Sandy Gravel Formation

砂卵石地层下盾构过浅覆土路段施工技术

Discussion on sand and gravel layer foundation of concrete faced rockfill dam

砂卵砾石层作为混凝土面板堆石坝坝基探讨

Study of the effect of slurry trench on concrete cut-off wall in deep sand gravel layer

护壁泥浆对深厚砂砾石层混凝土防渗墙影响的研究

Influence of Coarse Grained Content on Engineering Properties of Gravelly Soil

粗粒含量对砾质土工程性质影响的研究

Research on erosion process and features of loose gravelly soil slope

坡面松散砾石土侵蚀过程及其特征研究

This gravelly soil is well drain and good for grow root crops

这沙土地利於排水，适於种植块根作物

Progress in research on anti-permeability properties of gravelly soil core material and filter material

砾石土心墙料-反滤料联合抗渗研究进展

The property of hydraulic fracture of wide grading gravelly soil

宽级配砾石土水力劈裂特性的研究

Triaxial Tests Effect Study on Drilling and Pumped Sands of Gravelly Soil

砾质土钻孔灌砂工艺三轴试验效果研究

Gravelly soil slope surface shape and criticality under rainfall conditions

降雨作用下砾石土斜坡坡面形态及临界特性

Testing Study on strength reduction of gravelly soil in triggering area of debris flow under earthquake

地震作用下泥石流源区砾石土体强度的衰减实验

Study on bearing capacity of foundations of saturated gravelly soil in the reservoir zone of the Changjiang Gorges

三峡库区饱和碎石土地基承载力研究

After heavy tamping or compaction by rolling, the engineering properties of gravelly soil change with different coarse grained contents.

在重型击实或碾压后，砾质土的工程性质主要受粗粒含量的不同而变化。

And finally, the unsaturated permeability coefficient of gravelly soil is calculated by empirical formulas based on its SWCC and saturated permeability coefficient.

最后，根据土水特征曲线和饱和渗透系数，采用经验公式估算了其非饱和渗透系数。

The author has researched the diversity of grasshopper community in Loess Plateau of Luo River district from May to September in 2004 and aims to provide some scientific measures for the prevention and control of grasshopper and the development of agriculture.

作者于2004年5月至9月期间，对洛河流域黄土高原段的蝗虫群落进行了多样性研究，以期为该地区的蝗虫防治和农业发展提供一些科学依据。

The study indicated that the volatilization of P-DCB was very rapid with a high rate and obeyed to the first-rank reactive dynamics equation.

结果显示，雪、水中P-DCB的挥发速率相当迅速，土壤中P-DCB的挥发速率相对较慢，但都服从一级反应动力学方程；

Fractal Dimension of Size Distribution of Particle Group in Porous Medium Clay

多孔介质粘土颗粒群的粒径分布分形维