... backing pressure 托持压力,背压,前级... backing strap 衬垫 backing pass 底焊焊道 ...
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... [背]衬条(焊接) backing strap [背]衬条 backing strip 打底焊接 backing weld ...
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The straps are very soft and elastic, and the slip proof backing prevents the strap from falling off on your shoulder.
此种带非常柔软而且富有弹性,而且防滑处理可以使得减压带不会从你的肩上滑落。
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