“毫米”的拼音为：háo mǐ...

这辆轿车比原先的车型短了约40毫米。The car is some 40mm shorter than its predecessor.利雅得在12小时内降水就达25毫米。Riyadh got 25 mm of rain in just 12 hours.口径为120毫米的迫击炮的射程是1.8万码。The 120mm mortar has a range of 18,000 yards....

“微毫米”的英语可以翻译为：micromillimeter ...

“毫米”的英语可以翻译为：millimetre (mm.)，[力] millimeter of mercury (mmHg)，millimeter，mm，mm. ...