Traps should be installed in an accessible position and location for easy servicing.

疏水阀应该安装在可以接近的位置和易于维修的地方.

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All parts are accessible from top for easy servicing.

从顶部可以接触到所有部件,维修简易.

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All parts are accessible from the top for easy servicing.

从阀门顶部能够接触到所有的部件,便于维修.

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