n.厘米（＝1／100米）；公分
A centimeter is a unit of length. 厘米属于长度单位。
Using distant quasars as beacons, the antenna positions are triangulated for measurements within a centimeter, sometimes even within millimeters. 天线位置呈三角形，用远处的这些类星体做参考标志，测量误差可为厘米量级，有时甚至为毫米。
The light from these dim objects arrives at a trickle of only one photon per minute in each square centimeter. 当这些昏暗物体发出的光抵达地球，在每平方公分内每分钟只有一个光子。
