Snappn.斯纳普
snapv.劈啪作响;崩塌;砰然关上;猛咬;谩骂;拍摄n.啪嗒声;快照adj.突然的;匆忙的adv.劈啪作响地
snap sampling瞬间抽样
snap head die铆头模
snap shooting快射
snapbolt n.弹簧锁;
snap coupling快速联轴节, 自动联接器
snap hand jet带柄外径气动量规
snapshot copy快速拷贝
snaphead bolt圆头螺栓
snapped rivet圆头铆钉
snap fastenern.按扣;揿扭