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O 开头的英语单词（共 89,563 个）
operation and maintenance
[化] 使用和维护
operation and maintenance cost
运行和维护费用
operation and maintenance phase
操作与维护阶段
operation and support
作战和支援
operation area
营运范围
operation assistance
[贸易] 业务协助
operation at part load
分负荷运行
operation at power
功率运行
operation at rating
定状态下运行
operation at sea
水上作业
operation at undesigned conditions
在非设计条件下作业
operation availability
操作可用度
operation blank
[计] 空操作
operation board
[化] 操作盘
operation Bonnet's
[医] 邦内氏手术(眼球摘除术)
operation breakdown
[网络] 作业分解
operation buffer
[计] 操作缓冲器
operation building
[化] 操纵间
operation capacity
[经] 营业能力, 营业量, 工作量
operation card
工艺卡片,工序卡片
operation center
作业中心
operation certificate
[交] 营运证