粒级下限
transformer hv cable cross section is lower size with respect to the fault current, it should be minimum of 185 sq mm.
变压器高压电缆截面的低尺寸的敬意,向故障电流,它应该最起码的185平方毫米。
preliminary discussion on reasonable determination of upper and lower size of feed for steam coal preparation
浅谈动力煤选煤厂入洗上、下限的合理确定
when the lower size limit of nanomaterial grains approaches that of regular clusters, quantum effects overcome surface effects and become the dominant factor in defining measured properties.
当纳米材料颗粒的粒径减少到有规则的簇的水平时,量子效应将克服其表面效应成为决定材料可测性质的主要因素。
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