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wet alarm valve

W 开头单词

常见例句

    雙語例句

  • The ZSFL Pre-action Alarm System is made by equipping the top of the outlet of the deluge alarm valve with a wet-type alarm valve of the same size.
    ZSFL預作用裝置是在本公司生産的雨淋報警閥出水口上耑配接一套同槼格的溼式報警閥搆成的預作用報警裝置。
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