3 sentences

1. 一厘米等于十毫米。

   yī lí​mǐ děng​yú shí háo​mǐ.

   One centimeter is equal to ten millimeters.

   Source: Dong Chinese Dictionary

2. 这支步枪的口径是7.62毫米。

   zhè zhī bù​qiāng de kǒu​jìng shì7.62 háo​mǐ.

   The caliber of this rifle is 7.62 mm.

   Source: Dong Chinese Dictionary

3. 部分地区日降雨量已超过100毫米。

   bù​fen dì​qū rì jiàng​yǔ​liàng yǐ chāo​guò100 háo​mǐ.

   The daily rainfall in some areas has exceeded 100 mm.

   Source: OpenSubtitles