它和千克（10升蒸馏水的重量）一起构成了公制计量的基本单位。
Together with the kilogram, initially the mass of a decaliter of distilled water, it formed the basis of the metric system.
许多国家坚持用公制计量。
Most nation of the world insist that metric measurements be use.
很久以前，英国人就习惯于公制计量了。
The British people were accustomed to the metric system long ago.
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