必须立即安装照明设备。

Lighting fixture must be installed at once.

youdao

如果拆下塞子，必须立即安装在机体上，而且在油缸内放满油。

If the plug is removed, please install it on the main body immediately and fill the cylinder with oil.

youdao

对Ubuntu来说你可以选择尝试它(运行liveCD)或者立即安装它。

For Ubuntu you can choose to try it out (run the Live CD) or just immediately install the distribution.

youdao