n. a metric unit of length equal to one thousandth of a meter
常见例句
1
conventionally, that pressure under which the barometer stands at 760 millimeters, at a temperature of 0� Centigrade, at the level of the sea, and in the latitude of Paris.
2
the weight of a liter of hydrogen (at 0 centigrade and 760 millimeters pressure)
3
n a rule one meter long (usually marked off in centimeters and millimeters)
