查询词典 soils

Easy to dissolve in the water, does not dissolve in the organic solvent, water absorbant, absorbs water gradually in the air assumes sticks the porodine, can with the alkali soils metallization synthesis solubility duplicate salt, be one good water softener.

易溶于水，不溶于有机溶剂，吸湿性强，在空气中逐渐吸水而呈粘胶状，能与碱土金属化合成可溶性复盐，是一种良好的软水剂。

A potentiometric method for the determination of the apparent mean activity of NaCl in saline soils in situ was proposed.

使用锥形氯离子选择性电极和钠离子选择性电极，研究了在田间直接测定原位土壤中的氯化钠平均活度问题。

The soils have the strongly structural characteristics and preconsolidation characteristics too.Based on a detailed investigation into the previous engineering construction in Zhuhai Region and the experience with both successfu...

此外，结合珠海地区软土工程建设的成功经验和失败教训，对珠海软土地基处理、软土基坑工程和软土桩基工程等有关岩土工程问题进行综述。

These tests show that: 1. suction decreases with the increase of the water saturation in the chalk; 2. stress variants proposed are available for describing the stress state of the unsaturated chalk; 3. preconsolidation pressure increases with suction, while the effects of suction on the compressibility coefficients λ and κ are not evident; 4. as usual unsaturated soils, the permeability to oil of chalk increases with the suction; 5. yield strength of the chalk behaves with volumetric strain hardening; 6. cohesive behaviour of the chalk is related to the stress level, and relation between time-dependent deformation and logt is linear; 7. cohesion of the chalk decreases with the increase of the suction, while the elastic stiffness and the cohesion coefficient increase; 8. strength and elastic modulus increase with the strain rate, while the strain at the peak strength decreases with the increase of the strain rate.

试验结果表明，白垩中的虹吸力随水饱和度的降低而提高；吸力、水饱和度和强度的变化过程均与时间有关；可用由理论分析得到的应力状态变量描述非饱和白垩的平衡状态；前期固结压力随吸力增加而提高，而压缩指数λ与κ则同吸力无关；应力大于前期固结压力时，粘性变形与时间的对数关系曲线呈线性关系，其大小和增长速率均随吸力减小而增大，可视为白垩弹性刚度降低和粘性系数增大的结果；前期固结压力和变形模量随着应变速率的提高而提高，压缩指数κ和λ则随应变速率的提高而减小；应变速率较低时，粘性和吸力对前期固结压力及压缩指数的影响较小；白垩中油的渗透性随着吸力增加而提高；白垩在屈服阶段具有明显的体积应变硬化特性。

Amide and pyrrolic N are the major parts of the composition in the humic substance, soluble organic nitrogen and original soils.

在土壤腐植质、可溶性氮及本体土壤中胺态及吡咯氮占了主要的比率。

The improved method of determination of nitrate with salicylate is simple,rapid and accurate,and can be used for the analysis of NO - 3 in soils and water.

因此 ，探寻一种简便、快速、准确的 NO3 - N测定方法是土壤及环境科技工作者值得深入研究的问题。有关水杨酸法测

Soil ecological degradation can be defined as the process and phenomenon of a series of deterioration of soil ecological environment such as structural destruction and functional recession of soil ecosystem, decrease of soil biodiversity and productivity, dcsertification, drought, hardness, acidification and salination of soils, deficit and unbalance of soil nutrients, and loss of soil and water, resulting from human activities and adverse natural environmental conditions.

土壤生态退化是指由于人类活动及恶劣的自然环境条件作用或二者共同作用下造成的土壤生态系统结构破坏、系统功能衰退、土壤生物多样性减少、土壤生产力下降以及土壤荒漠化、干旱化、板结化、酸化、盐碱化和养分亏缺与失衡等一系列土壤生态环境恶化的过程和现象。

In accordance with the prevention of soil salination and water-saving irrigation in autumn in Inner Mongolia Hetao irrigation district, the reasonable water-saving irrigation scheme in autumn was quantificationally established by using SHAW model in theory, which aimed at the different salinized soils.

根据内蒙古河套灌区秋浇节水与土壤盐渍化防治的需要，利用SHAW模型模拟确定了不同盐渍化土壤合理的秋浇节水灌溉制度。

The present study was focused on the soil/air partitioning behavior of selected volatile organic compounds and semivolatile organic compounds under a frozen circumstance or in oil-complex contaminated soils.

本论文研究了东北受污染土壤中，挥发、半挥发性有机污染物在低温和油复合污染时的土/气分配行为。

The rate of 35 S2- formation greatly increased with incorporating sesbania and rice straw or with flooding of soils.

S￣（2－）的生成速率随施用田菁和稻草以及淹水而增加。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。