Word diameter symbol how to play

Question: Just use Word, it is not very familiar with, want to ask the word inside the diameter symbol how to hit, where to find? Please tell me, thank you!

Answer: Insert--symbol--Greek letter--φ.

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Another method: The use of input method, the input method to "intelligent ABC", first press V and then press the number key 6, at this time you can see many different symbols inside, of course, you can press "+" number of pages, there is a diameter symbol, as shown:

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