soil formation

基本解释

Mountainous area provides rich saccharoid for basin, which is important parent material of oasis soil formation.
山地为盆地提供了丰富的粒状物质，它们是绿洲土壤重要的成土母质；
According to the natural factors of soil formation and the development, degree of Soil, under the influence of human production activity, the Huangmian soils were devided into four types.
根据自然成土因素和在人为作用影响下的土壤熟化程度，将该小流域的黄绵土进一步划分为四种土壤类型。
This thesis focuses on the slab track layed on the soil formation. A mechanical model of slab track layed on the soil formation is established, and system analysis is made for its stress performance.
本文以土质路基板式轨道为研究对象，建立了土质路基板式轨道力学分析实体模型，对其力学性能进行了系统的分析。

The extension service says the best formation happens when the soil is between fifteen and twenty-one degrees Celsius.

土质路基
As one of a main parts of overseas high-speed railways route, temperature load has important influence on the slab track structure on the soil formation. This article analysis the temperature stress on I shape slab track.
板式无砟轨道作为现代高速铁路线路的重要组成部分之一,其中温度荷载问题是板式轨道设计中的一个重要因素,本文主要对我国土质路基上CRTS-Ⅰ型板的温度应力进行分析。
地球科学
土壤的形成
成土作用
土壤形成
成土过程