The file program can be used to find out a file's type. The file being tested can be a text file ex.

file程序可以用来查找文件类型。

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In general a sealing technology involving welding in combination with expand jointing is used for connecting a pipe column to a tube plate in a tubulature type heat ex- changer.

列管式换热器的换热管束与管板连接一般均采用焊接加胀接的密封固定工艺。

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Type EX units are available in all sizes for all ventilating requirements. They are specially designed for maximum efficiency and quiet operation.

EX型排风扇可适应所有需要通风的应用。它们是专为最高的效率和安静的操作而设计。

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If you are lucky, the REIT you are interested in will make a careful distinction between maintenance-type cap ex and the other kind--purchasing new properties.

FORBES: Shaky Dividends