单词	rubber valve seat
释义	rubber valve seat 橡胶阀座
随便看	double-or-quits double or quits double or quits double double or reverse calculation double oscillation double oscillator double oscillograph double osculating plane double o seven double out double outlet of left ventricle double outlet of right ventricle double output double-outrigger canoe double oval double over double overarm double over double double overflow double-overhead-cam double overhead camshaft double overhead contact line double overhead wide belt sander double-over test double-overtime 行香挂牌衍衍2 衍3 衍4 衎衏衐衑衒つんつんつんでれつんとつんどくつんどく【積ん読】つんどらつんのめるつんぼつんぼ【聾】つんぼさじき