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这种织物进行过防水处理。
The fabric has been treated to repel water.
《牛津词典》
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这时还要对接头进行防水处理。
The joints between the sections are also made watertight at this stage of construction.
youdao
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这时还要对接头进行防水处理。
The joints between the sections are also made watertight at this stage of construction.
youdao