松软土壤 meaning in English
mellow soil
yielding soil
Examples
- Beets like cool temperatures , between sixteen and eighteen degrees celsius . they grow best in full sun and in loose soil that is not too wet
甜菜喜爱凉爽的温度，在摄氏16 - 18之间。它们生长在阳光充足，不太潮湿而松软土壤里。 - Ants till the soil so that there is enough air element in the land to sustain the roots of the plants , worms ingest the decay and produce nutrients necessary to the health of the plants
蚂蚁会松软土壤以使足够的气元素维系植物的根系；蛆虫会吞下腐烂物并产生植物健康所必须的营养素。 - Now some universities and institutes of china have made some samples of the lunar rovers and theirs wheels , but until now the wheel ’ s mechanical performance is seldom researched and tested . this paper will analyze the mechanical performance of the wheel and design a test - bed to test the performance of the lunar rover ’ s wheel . firstly , the mechanical characters of the soil are separated to press - sinkage character and shear character based on bekker ’ s theory , and common press - sinkage and shear models are introduced and the theory of lankine passive earth pressure is also introduced
根据bekker半经验法的基本思想,将土壤的力学特性分解为水平方向的剪切特性和竖直方向的承压特性,阐述了地面力学中常见的土壤的承压、剪切等力学模型,并引入了朗肯被动土压力理论,为建立车轮在松软土壤中前进和转向的力学模型奠定了基础,同时进行了实验土壤的剪切实验,测量了土壤的内聚力和内摩擦角等参数。