outer casing
外皮
casing【科技】;ectoderm【昆】[专业]熏肉或干酪等的\nrind【食品】;skin【解剖】
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相关词条
casing ring
spiral casing (volute casing, spiral housing)
Casing
ignition distributor casing, air-tight
bell-weevil hanger【油气】;casing hanger【油气】
casing O-ring
split-casing pump