毫米

The gemstone is 28.6 millimetres high and weighs 139.43 carats.

这块宝石高28.6毫米，重139.43克拉。

Riyadh got 25 mm of rain in just 12 hours.

利雅得在12小时内降水就达25毫米。

The car is some 40mm shorter than its predecessor.

这辆轿车比原先的车型短了约40毫米。

The rainfall averages 1000 mm a year.

年平均降雨量为1000毫米.

The total rain and snowfall amounted to 50mm.

降雨量和降雪量共达50毫米。

The 120mm mortar has a range of 18,000 yards.

口径为120毫米的迫击炮的射程是1.8万码。

Lay strips of 4mm ply over the mesh and nail these down with panel pins.

把4毫米厚的胶合板条铺在网子上，然后用镶板钉钉牢。

One centimetre is equal to 10 millimetres.

一厘米等于10毫米.

Standard 8mm projects at 16 frames per second.

标准的8毫米的胶片每秒放映16组镜头。

Height: 210 mm. Width: 57 mm. Length: 170 mm.

高：210毫米；宽：57毫米；长：170毫米。

The rainfall average s 800 mm . a year.

平均每年降雨量为800毫米.

The annual rainfall in this area was less than 50 mm last year.

本地区去年的降雨量不足50毫米.

The edge must be machined down to 0.02 millimetres.

这边缘必须切割到0.02毫米的精确度.

In the back of the truck was a 12.7 millimeter rapid-fire machine gun.

在卡车后面有一只12.7毫米口径的速射机关枪。

Press reports said that 65mm of water fell in twenty four hours.

媒体报道称24小时内的降雨量达到了65毫米。