砂型紧实度
compactability of sand mold
compactibility of sand mold
充填和紧实
Sand Filling and Compacting
单模态标准型紧
fiber optic cable， single mode， standard， tightly buffered， multifiber
fiber optic cable
single mode
Standard
tightly buffered
multifiber
电球型紧凑型荧光灯
Compact fluorescent lamp for incandescent socket
非紧型测度
measure of noncompactness
干砂充填紧实
Sand Filling and Compacting
紧实率控制
sand compactability control