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气门导管 qìmén dǎoguǎn
auto. valve-shank guide; valve-stem guide
busin. valve rod guidance
met. valve guide
tech. valve shaft guide
气缸盖气门导管 qìmén dǎoguǎn
auto. valve bushing
配气机构气门导管 qìmén dǎoguǎn
auto. stem guide
气门导管
: 25 phrases in 2 subjects
Automobiles18
Technology7