• So we need to save energy in our daily life, such as close stopcock, lights, air-conditioning and fans when we leave.

    所以我们需要我们日常生活中节约能源在我们离开时候关闭水龙头空调电扇

    youdao

  • The air leak tester of GST-4000 is successfully designed according as the characteristics of Fuel Gas Stopcock and test demands.

    基础上,根据燃气具旋塞阀的具体特点检测要求而开发的一款产品。

    youdao

  • The air leak tester of GST-4000 is successfully designed according as the characteristics of Fuel Gas Stopcock and test demands.

    基础上,根据燃气具旋塞阀的具体特点检测要求而开发的一款产品。

    youdao

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