soil grain的例句大全

The grain size composition is well except the outside soil of the south wall and the inboard soil of the north wall.

粒度成分除南墙外侧与北墙内侧土体的级配不良外，其余各墙体均级配良好；

Status of phosphorus in orchard soil intercropped with grain crops

果粮间作条件下的土壤磷素营养特性

Distribution of Trace Elements in Water, Grain and Soil for Endemic Arsenism Disease Area by NAA

地砷病区水、粮食和土壤中微量元素中子活化分析

The Effects of Comprehensive Water Conservation Technique on Grain Crop Yield in Soil-Plant System

土壤&植物体系中综合保水技术的增产效应

Mollisols region in China is the grain production base of China or "bread basket of China". The crop production was affected directly by C and N content in soil.

黑土区是我国重要的商品粮生产基地，土壤有机碳氮含量直接影响作物产量。

Application of fractal theory to evaluation of features of grain size composition of soil mass

分形理论在土体粒度成分特征评价中的应用

Research of correlation between aerodynamic roughness length And grain size distribution of cultivated soil

耕作地表土壤粒径分布与空气动力学粗糙度关系的研究

Years required for soil moisture restoration of desiccated soil layers to local soil stable moisture with alfalfa-grain crop rotations on the 3 different rainfall areas were over 6 years, 11 years and 18 years separately.

通过粮草轮作使苜蓿草地土壤湿度恢复到当地土壤稳定湿度分别需要6、11a和18a以上。

In sum, using laser grain-size analysis in studying soil mechanical composition was feasible.

总之，运用激光粒度分析土壤机械组成是可行的。

The content and distribution of available silicon, grain size, clay minerals in the soil, pH of soil solution, and silicon solubility in the weathering process were studied by means of XRD, grain-size analysis and simulating experiment on soil weathering.

利用XRD、粒度分析、土壤风化模拟试验等方法，对黄土区土壤有效硅含量分布、土壤机械组成、粘粒矿物种类及含量分布、土壤溶液pH值和土壤矿物风化过程中硅的析出规律进行研究。

In the beginning of the 21st centuries, The grain for the green is an important strategic decision that our government planed to manage the soil erosion, improve the ecosystem environment, promote the coordination of economy development between eastern region and western region.

退耕还林（草）是我国政府于世纪之交提出的一项重大战略决策，旨在治理水土流失，改善生态环境，促进东西部经济协调发展。

Soil available potassium content after treated by the root exudates of grain amaranth was higher than that treated by pure water. Under low potassium stress, the content of soil available potassium treated by the root exudates of K12 was higher than that treated by those of M9.

籽粒苋根系分泌物处理后的土壤速效钾含量均高于清水对照处理，富K基因型在低K胁迫时的根系分泌物对土壤K的活化作用明显大于一般基因型。

Loess soil is soft, fine grain, rich in soluble minerals, nutrients, porosity, permeability is strong, it is easy disintegration in water, corrosion resistance is weak.

黄土颗粒细，土质松软，结构疏松、富含可溶性矿物质养分，孔隙度大、透水性强、遇水易崩解、抗冲抗蚀性弱。

The different phases of mercury are also somewhat related to environmental materials ( organic matter, grain sizes of soil and pH values).

Hg不同相态的含量与环境物质（有机质、土壤粒度、pH值）也存在一定的联系。

Effects of Conservation Tillage of Strip Intercropping of Grain-Grass-Legume on Soil and Water Loss in Sloping Fields

粮草豆隔带种植保护性耕作对坡耕地水土流失的影响

Effect of N rates applied to summer maize on soil nitrate content during the following crop season and winter wheat grain yield in Huang-Huai-Hai Plains

黄淮海平原玉米施氮量对后茬小麦土壤剖面硝态氮和产量的影响

the coarse-grained soil as embankment fill can meet the basic condition of heat transfer theory to uplift artificial permafrost table.

粗颗粒土作为填料可以满足路堤人为上限抬升的基本传热学条件；

the scale-down test to define the maximum effective grain size of expansive soil when it is improved by lime;

在室内进行膨胀土掺灰的最大有效粒径的模拟试验，即钙离子水试验，由此总结出粉块灰土搅拌工艺的有效性、合理性和可行性；

study of frost heaving susceptibility of fine-grain soil of highway subgrade in seasonally frozen ground regions

季节冻土区公路路基细粒土冻胀敏感性研究

root exudates of potassium-enrichment genotype grain amaranth and their activation on soil mineral potassium

富钾基因型籽粒苋主要根系分泌物及其对土壤矿物态钾的活化作用