1. First of all, introduce the method of inputting one thousandth symbol by input method: After many tests, when we input one thousandth or micrometer by input method, one thousandth symbol will appear.

2. If you use the intelligent ABC that comes with the system, you can enter v 1 first, and then use the keyboard pagedown to turn pages and find the symbol of one thousandth.

3. You can also press and hold Alt+ 137 to directly input the micrometer. You can test other input methods for inputting micrometer. sogou, qq, Google and other input methods are similar. You can test them.