The diameter of human hair is less than one millimeter.

人的头发直径小于一毫米。

The two pens are only a few millimeters apart in length.

这两支笔的长度只有几毫米之差。

The data we measure must be accurate to millimeters.

我们测量的数据必须精确到毫米。

The creature is just 10 millimeters long.

这种生物只有10毫米长

These sections of rocks are dissected, using a laser, into slices a millimeter or less thick.

采用激光将这些小岩石块切分成一毫米或更薄的薄片。

Nanocrystals, also known as quantum dots, are semiconducting particles with a diameter of a few millionths of a millimeter.

纳米晶体，也被称为量子点，是一种直径只有百万分之一毫米的半导体粒子。

If the ground stations tracking the satellites are not accurate to the millimeter, then the satellites cannot be accurate either.

如果跟踪卫星的地面站位置不能精确到毫米，那么卫星也是不可能精确的。

The process is possible only with certain materials (plastics, resins and metals) and with a precision of around a tenth of a millimeter.

这个过程只能用特定的材料（塑料，树脂和金属），精度在0.1毫米左右。

If one torr equals 1 millimeter of mercury, then 1 millitorr must be equivalent to 1 micrometer of mercury, right?

如果1托等于1毫米汞柱，那么1毫托一定等于1微米汞柱，对吧？