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O 开头的英语单词（共 89,563 个）
oil sand
[机] 油砂
oil sand core
[机] 油砂心
oil sand mold
[机] 油砂模
oil sands
[网络] 油砂；含油砂；油沙
oil saponification value
油的皂化值
oil sardine
长头小沙丁鱼
oil saturation
含油饱和率
oil save-all
[网络] 防止溅油装备
oil saver
[化] 油回收器
oil sb's fist
向人行贿
oil scale
油标,量油表
oil scavenger
回油器
oil scavenger pump gear
回油泵齿轮
oil scavenging pump
回油泵，排油泵
oil scraper
刮油刀
oil scraper ring
刮油环
oil screen
油筛;精制石油的滤网
oil screen retainer
滤油护圈
oil scupper
[化] 油槽
oil seal
[化] 油封
oil seal cover
油封盖
oil seal felt
油封毛毡
oil seal housing
[化] 油封箱
oil seal leather
[化] 护油圈革
oil seal lip
[机] 油封件唇部