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O 开头的英语单词（共 89,563 个）
operational structure
业务结构调整优化
operational subsystem
作业子系统
operational suitability test
[化] 运转适应性试验
operational support
[计] 运行支援
operational support and analysis
营运维持与分析
operational support system
运行支撑系统
operational symbol
[计] 运算符号
operational system analysis
[计] 运算系统分析
operational system management
[计] 操作类型应用
operational system matrix
运算系统矩阵
operational system simulation
[计] 运算系统仿真
operational term
[通信] 操作术语
operational terms
操作术语
operational test for auto alarm signal sender
[水运] 警报信号自动拍发器效用试验
operational test for auto alarm system
[水运] 警报信号自动报警器效用试验
operational test for automatic fire alarm system
[安全] 火灾自动报警系统效用试验
operational test for automatic sprinkler system
[安全] 自动喷水系统工作试验
operational test for inert gas system
[安全] 惰性气体系统效用试验
operational test for piping
[试验] 管系效用试验