关掉

If the machine starts making a hissing noise, then turn it off double quick.

如果机器开始发出嘶嘶声， 立刻把它关掉。

Do you close out safari, open settings, traverse the menus and reenable the 3g?

会不会关掉Safari，开设置，扫遍菜单，重新启动3G？

When you turn on a transistorized radio, the sound comes on immediately; when you turn off, it fades out gradually.

开晶体管收机, 立刻就有声, 当关掉它时, 声渐渐消失。

The excrescent indicator is bright, output 1.May be lead to flow a protection, please turn off machine, needing an excrescent indicator to destroy to re- switch on again can recover normally.

示灯亮，无输出 1． 可能是过流保护，请关掉机器，待示灯灭掉再重新开机可恢复正。