Unless otherwise stated in this proposal, all trays will be top installable only and have two (2) manway vertically aligned to allow passage from above or below.

  • 除非本报价另有规定,否则,所有的塔板都将为单顶部安装型,并有两(2)个人孔垂直对准,以便从上方或下方通过。(能否从专业角度给与解释,不好理解)
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