Number + 毫米
毫米 (háomǐ) is a measure word meaning "millimeter." It is used for precise measurements of very small lengths or distances. Place the number before 毫米 to express a measurement, just as you would with other Chinese units of measure.
这个零件的厚度只有零点五毫米。
Zhège língjian de hòudù zhǐyǒu líng diǎn wǔ háomǐ.
The thickness of this component is only zero point five millimeters.
今天的降雨量大概是十五毫米。
Jīntiān de jiàngyǔliàng dàgài shì shíwǔ háomǐ.
Today's rainfall is approximately fifteen millimeters.
这种手机屏幕的厚度不到两毫米。
Zhè zhǒng shǒujī píngmù de hòudù bù dào liǎng háomǐ.
The thickness of this type of phone screen is less than two millimeters.
这个零件的厚度只有零点五毫米。
Zhège língjian de hòudù zhǐ yǒu líng diǎn wǔ háomǐ.
The thickness of this component is only zero point five millimeters.
今天的降雨量大概是十五毫米。
Jīntiān de jiàngyǔliàng dàgài shì shíwǔ háomǐ.
Today's rainfall is approximately fifteen millimeters.
这种手机屏幕的厚度不到两毫米。
Zhè zhǒng shǒujī píngmù de hòudù bú dào liǎng háomǐ.
The thickness of this type of phone screen is less than two millimeters.