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- Research on water movement and solute transport in layered soil has beenconcentrated on clay layer, however, less work has been done on soil with sand layerespecially on salt movement characteristics under this condition. 关于层状土中水分运动和溶质运移的研究，目前主要集中在研究粘土夹层的情况，对于沙土夹层的研究较少，特别是在该情况下的盐分运动特性研究更少。
- 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。
- 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。
- 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。
- 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。
- 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]
- Soil Capillary Water Upward Movement from Sand Layered Soil Column 夹砂层土体构型毛管水上升的实验研究
- 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 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。
- In order to simplify the layered soil by this model, this article provides a variably damped least square method to identify the parameters by using the actual acceleration records. 为了将这一模型应用于此类土层，本文根据实际地震动记录，提出了一种变阻尼最小二乘反分析方法，可用来识别模型中的各个参数值。
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- He added sand to the soil to make it more porous. 他往土里掺了些沙子以提高渗水性能。
- The cultivation layer soil phosphatase activity and N2O emission flux appeared negative relation markedly, with correlation coefficient of 0.4660. 结果表明，耕层土壤磷酸酶活性与土壤N2O排放通量呈显著负相关，相关系数为0.;4660。
- Ouch! The sand is so hot! I can burn my feet. 哎哟！沙子这么烫！会烫伤脚的。
- The sand blew into the food and made it gritty. 砂吹进食物中，里边尽是砂子。
- A field representative to the high production -region in Yutian county, Hebei province was selected and a 70 kg top layer soil sample was taken from the field in June, 1991. 在河北省玉田县高产地区选一个有代表性的地块，1991年6月麦收后采集70公斤的耕层土样。
- The children were playing in the sand pit. 孩子们在沙坑中玩耍。
- 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。
- The tractor has make deep furrow in the loose sand. 曳引机在松软的沙土上留下了深深的车辙。
