您要查找的是不是：
- A field investigation on the tilled layer soil in Nanjing region revealed two distinctive types of soil structures, machinery-till related and biological related structures. 摘要南京地区农地耕作层土壤显示2种土壤结构形态：机械耕作以及生物学特征的土壤结构表现。
- layered soil structure 土层结构
- The deterioration of soil structure is difficult to remedy. 土壤结构的恶化很难挽回。
- Effect of application of fertilizers on soil structure in red soil. 施肥措施对红壤结构的影响。
- A mixture of decaying organic matter, as from leaves and manure, used to improve soil structure and provide nutrients. 堆肥腐烂有机体的混合物，如树叶或粪便，用来改善土壤结构并增加土壤养分
- Soil structure is brown loam over red/yellow clay with underlying shale. 土壤结构为咖啡色壤土覆盖红/黄黏土，基底为页岩。
- This paper presents a matrix approach for calculating the pile settlement and shaft-load in layered soil. 提出了一种通过简单的矩阵运算求算分层土单桩的沉降和轴力的计算方法。
- Infiltration water is favorable to the soil structure genesis and stability. 浸润水分有利于土壤结构的形成和稳定。
- The influence of sedimentation on overburden pressure and settlement of layered soil is studied and the relevant formulas are developed. 研究了沉积作用对成层地基自重应力与沉降的影响,给出了相应的计算公式,并对几种情况下的计算结果进行了分析比较。
- They will grow good cereal crops so long as soil structure is maintained. 只要土壤结构能够保持，他们就能够种出优良的谷物。
- A random wave-theory analysis method is developed for the random seismic response analysis of layered soil sites under the P-and SV-wave excitations. 提出了P、SV波作用下层状土层地震反应分析的随机波动分析方法。
- Plants creating plenty of organic matter do most to improve the soil structure. 植物生产了大量的有机物，大大改善了土壤的结构。
- The simulation results of the backscattering of multilayered soil, dielectric properties of soil are given and the models are validated by special case of single layered soil. 对裸露土壤深层后向散射、土壤介电特性给出仿真结果。通过已知的单层土壤(双层介质粗糙面模型)的后向散射验证了模型的正确性。
- CAI Yuan-qiang,LING Dao-sheng,ZHOU Di-yong.Inverse calculational analysis of ground motion in nonlinear layered soil[J].Journal of Vibration Engineering,2000,13(3):426-432. [6]蔡袁强;凌道盛;周迪永;等.;非线性分层地面运动反演分析[J]
- This overall deterioration in soil structure is usually accompanied by a reduced nutrient retention capacity. 这种土壤结构的全面恶化，通常伴随着养份保持能力的降低。
- The space substructure method is used to analyse the space frame, and the finite layer summation method is used for the layered soil. 在分析中，上部结构用空间子结构法分析，而分层土用分层总和法求其刚度。
- The mechnical stability, varies with soil texture and with various phases of soil structure. 机械稳定性随土壤的层理和土壤结构中各相情况而变化。
- The dynamic interaction between structures and layered soils during earthquakes was studied analytically. 采用解析方法研究成层地基与结构物动力相互作用特性。
- The mechanical stability, varies with soil texture and with various phases of soil structure. 机械稳定性随土壤的层理和土壤结构中各相情况而变化。
- The modulus of base layer soil is related to upper vibrating compaction when filling the subgrade. 摘要路基填筑时，基底模量的大小对上层振动压实具有较大影响。
