The surface quality of Y2 frame and the percentage of end product can not be compatible, because the toughness and mobility of the moulding sand in clay sand are antagonistic each other.
型砂韧性和流动性在粘土砂中是互相对立的，它使Y2机座表面质量和成品率不能兼顾。
The sand ground temperature is higher obviously than clay straw barrier ground and the leaf surface of natural desert plants under the same conditions of sunlight, time and the area.
在同一地区约同一时间相同的日照下，沙面温度明显高于粘土、麦草沙障表面和沙生植物叶面温度。
The model stratums mainly included miscellaneous filling soil surface, interaction stratum of silty clay, silt and fine sand and pebble round gravel at the bottom of station tunnel.
模型介质材料分别模拟地表杂填土层，粉质黏土、粉土、粉细砂互层和车站隧道底部的卵石圆砾层；
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