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Laptops can be taken on the plane, but you need to pay attention to the following five aspects when passing the security check:

1. In order to improve the speed of security inspection, it's best to take out the computer bag in advance and separate it from other packages and check it by X-ray machine.

2. Don't put the CD-ROM in the computer's CD-ROM drive, and don't put external USB flash drives, wireless network cards and other hardware devices. It is also best to separate the power supply and mouse from the computer and put them into the X-ray machine for inspection, so as not to bring unnecessary trouble to the security check.

3. Don't use computer to package lighters. There are smoking places in the airport to meet the needs of smokers. It is forbidden to transport and carry lighters.

4. In order to speed up the security check, try to check the pasted items and don't put them in the computer bag.

There is no hard and fast rule on the number of computers that passengers carry on domestic flights, but there are certain requirements on the batteries of computers. If you carry more than two notebooks, it is best to separate the battery from the computer and pack it with insulating materials such as foam paper.