The introduction of the metric system in Britain is being phased. 英国引进米制度量衡制度的工作正在分阶段进行。
For example, in teaching an apprentice lathe operator to read blueprints,you might assume that she has the ability to make metric conversions-hence you would not teach this skill. 例如，在教一个学徒车工读蓝图的过程中，你可能以为她有能力做米制变换，因此你将不教这项技能。
