该计时器采用光电技术和微电脑技术，设计先进，使用安全。
With the adoption of the technology of photo electricity and microcomputer, the controller proves itself to be of advanced design and security.
该计时器采用光电技术和微电脑技术，设计先进，使用安全。
With the adoption of the technology of photo electricity and microcomputer, the controller proves itself to be of advanced design and security.
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