Electro-mechanical chopper-Quality grading standard 机电斩波器质量分等标准
The aggregates used have been selected for their shape, grading and high physical and mechanical quality.
所使用的聚合物是挑选它们的形状、分类、高物质及机械质量。
Mechanical stabilization consists of adding granular or cohesive materials, depending on which is the most suitable, to the subsoil to improve its grading.
机械稳定法是指在基层土中，根据土质加入颗粒状的或者具有附着力的材料。
Mechanical stabilization consists of adding granular or cohesive materials , depending on which is the most suitable , to the subsoil to improve its grading .
机械稳定法是指在基层土中，根据土质加入颗粒状的或者具有附着力的材料。
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