吊扇可以把空气向上或者向下吹——这取决于吊扇是怎样安装的。
These fans will either blow the air down or up, depending how you set them.
有谁懂得怎样安装这台发电机吗?
当安装一件管件时,你怎样决定管件在船上的确切位置?
When fitting a piece of pipe, how do you determine the exact position on board?
能不能告诉我怎样安装这个程序?
有谁懂得怎样安装这台机器吗?
当安装一管件时,你怎样决定管件在船上的确切位置?
When fitting a piece of pipe, how do you determine the exact position on board a ship?
当安装一管件时,你怎样决定管件在船上的确切位置?
When fitting a piece of pipe, how do you determine the exact position on board a ship?
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