oil conduit [交通運(yùn)輸工程]油道oil company oil colour oil color oil coke 石油焦炭，油焦oil cistern [機(jī)械工程]油杯[交通運(yùn)輸工程]貯油槽oil circultion cooling [動(dòng)力與電氣工程]環(huán)流油冷卻oil circulation cooling [交通運(yùn)輸工程]潤(rùn)滑油循環(huán)冷卻[機(jī)械工程]環(huán)流油冷卻環(huán)流電冷卻oil circuit breaker [電] 油壓斷路器（等于oil switch）oil cherry laurel [醫(yī)藥科學(xué)]月桂櫻油oil chalk test [冶金工程技術(shù)]滲油刷白探裂法oil centrifugal extraction [材料科學(xué)]離心法取油oil catcher 油滴接頭；[油氣] 集油器oil catch-ring [交通運(yùn)輸工程]潤(rùn)滑油收集環(huán)oil catch ring [經(jīng)濟(jì)學(xué)]油收集環(huán)oil catch can [經(jīng)濟(jì)學(xué)]收油罐oil car 油槽車oil canning oil can 油壺；加油器oil cakes