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刮油圈

oil scraper ring

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【运输】伸缩料筒，油压刹车油缸

telescopic cylinder, oil-pressure brake-release cylinder

wintergreen oil

【化】丙纶油剂

oil for polypropylene fibre

【化】油加热器

oil heater

【化】油气化

oil gasification

【化】油腐蚀

oil corrosion

【化】模油

moulding oil

含油气盆地

oil-gas-bearing basin【地质】

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