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PC B背面贴装有元件时，另一面也可清洁。
Can clean PCB top side surface with components mounted on the bottom side.
youdao
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所述结构元件是轮胎胎面胶。
Preferably, the structural element is a tire tread band.
youdao
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所述结构元件是轮胎胎面胶。
Preferably, the structural element is a tire tread band.
youdao