外装式机械密封
external mechanical seal
台阶式密封
steps type seal; stepwise seal
外装电动机
outboard motor
外装钢带
armoring tape
外装软管
armored hose
外装铁线
armoring wire
套管密封
bobbin seal; seal by sleeve
托运人装箱并密封
shipper's pack and seal
椭圆槽密封面
oval groove seal contact face; ovally grooved seal face
外部密封
outside seal
外密封
external seal
髓外的
extramedullary
损伤外观
deface
所得税除外项目
tax exclusions
塔板外径
outside diameter of tray; tray outside diameter
胎盘外的
extraplacental
胎盘外腔
ectoplacental cavity
逃避外汇
evade foreign exchange
逃漏外汇
evasion of foreign exchange
套购外汇
arbitrage in foreign exchange