heavy ewe怀孕母羊heavyadj.大(量)的；重的；沉重的；猛烈的heavy horizontal pendulum重水平摆heavy-current connector强流接头heavy seamless steel pipe加厚无缝钢管heavy current engineering强电工程heavy-duty bogie waggon重载平板车heavy timber construction重型木结构heavy paraffinic impurity重链烷烃杂质heavy unemployment period严重失业时期heavy ion fusion reaction重离子熔合反应heavy compaction standard标准重型击实