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boylb:请教如果负压缸有一定体积(比较大),如何操作? 是否要抽真空? d*khda;Vj (2013-05-16 15:12) YiB]}/
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清蒸武昌鱼:体积大了固定方式比较麻烦,强度和负压缸的重量都很大,需要装好后再用水泵往里面加水,或者用抽气泵往外抽空气 (2013-05-16 15:39) v\rOs+.s
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