平垫
flat gasket
平垫片
flat gasket
平垫片密封
seal with flat gasket
普通垫圈
plain washer
嵌入式垫圈
groove gasket
球状垫圈
spherical valve
配重天平
counterpoised balance
配阻平衡器
bazooka
盆腔中段平面
midplane
盆中平面
midpelvic plane
皮肤平滑肌瘤
leiomyoma cutis
偏心平面位置显示器
off-center plan-position indicator
偏转平面
deflcetion plane
平
calm; draw; equal; even; flat; peaceful; plane; smooth; suppress; tie
plano-
平安
safety
safety
平安的
restful; safe; safe and sound; scatheless; scot-free; without mishap
平安定位
normal clear
平安在家
under one's vine and fig tree
平凹的
plano-concave
planoconcave
平凹镜片
planoconcave lens