... drain gutter 排水沟 drain gutter 泄水沟 drain hat 污水井 ...
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... valley gutter斜沟槽 drain gutter排水沟 secret gutter屋檐暗水槽,暗沟...
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barrel-drain drain gutter watering 排水沟
gutter drain 排泄沟
The cable provides a continuous drain path for melting snow and ice to flow (through the gutter and into the downspout ).
电热带提供了一条连续的排水的路径。
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