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O 开头的英语单词（共 89,563 个）
oil compensating relief valve
滑油平衡安全阀
oil compressor
压缩机油
oil concentration
[污水]含油浓 度
oil condenser
[电] 油质电容器
oil conderser
油（介）质电容器
oil conditioner
[电] 净油机
oil conduit
油管
oil cone
雾[化]锥[体]
oil conservation tax
[税收] 石油资源保护税
oil conservations
石油资源保护\n(oil conservation 的复数)
oil conservator
[电] 贮油器
oil consumption
[化] 油耗量
oil consumption country
石油消费国
oil consumption factor
[网络] 耗油量系数；赫兹公式
oil contactor
接触器
oil container
油器，油室
oil containing ballast water
[网络] 含油压舱水
oil containment boom
[环境] 围油栏
oil contamination
油的沾污
oil contamination stage
[网络] 油污阶段
oil content
含油量
oil content alarm
[网络] 油分报警器
oil content in mud
泥浆含油量