... 体积弹性系数 Bulk modulus 散积 Bulk piling 大花玉兰 Bull bay (Magnolia grandiflora， Linn.) ...
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... piling bar 钢桩 bulk piling 实积,无垫木堆积... sheet piling 打板桩 ...
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piling theory of bulk casting 抛体堆积原理
·2,447,543篇论文数据，部分数据来源于NoteExpress
The serious dust pollution and the materiel loss are the main problems during the transport and the piling of the bulk mineral materiel due to the effects of wind and the jolt of transport vehicles.
矿物散料储运过程中，由于风力和运输车辆颠簸致使散料散失严重，造成严重的粉尘污染。
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