松软地面 meaning in English

loose ground

A new method for determining the parameters of shear property of soft terrain
确定松软地面剪切特性模型参数的新方法
Abstract : aiming at the advantages of air - cushioned vehicles running on soft terrain and referring to the crawling mechanism of crawling pipeline robot , this paper introduces a new type of bionic stepping air - cush - ioned vehicle ? ? push - pull air - cushioned platform
文摘:根据气垫车辆在松软地面上行驶的优越性，参照蠕动式管道机器人的蠕动机构，介绍了一种新型的仿生步行行走机构气垫车? ?推拉式气垫运载平台。
These basic theories are helpful to construct model . some parameters of soil used for experiments are measured by shear experiments . secondly , mechanical models of the wheel - soil interaction when rolling and steering are constructed respectively based on the theory of terrain - vehicle and passive earth pressure
基于地面力学中的bekker承压模型和janosi剪切模型,建立了一种月球车车轮在松软地面上前进时的力学模型,根据被动土压力理论,建立了该车轮在转向时的力学模型,给出了所建方程及模型的数值解法。