- maintenance and operation
- 维护: safeguard; defend; uphold; k ...
- 与: take part in; participate in
- 操作: operate; manipulate; handle
- 程序的维护与操作: maintenance and operation of programs
- 视频和电视设备及系统维护与操作的安全要求: safe handling and operation of audiovisual video and television equipment and systems
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