mm的读音 mm中文意思

读音 
abbr. =megameter;=millimeter;=millimicron
mm 用法和例句
Average precipitation is not more than 140 mm annually .
年平均降水量不足140毫米。
Choose a display with a dot pitch of . 28 Mm or smaller .
所以可以选择一个28毫米点距甚至更小点距的显示器。
Luckily , the fish only grows to a maximum of 16.7 mm .
幸运的是,这种鱼只能长到16.7毫米长。
At maturity , the fish can be about 7.9 mm in length .
这种鱼在成熟期约长7.9毫米。
Measuring 6 mm and weighing just 0.029 grams , they are perfect miniatures of their parents .
虽然身长6毫米,体重0.029克,他们是他们父母完美的缩小版。