imperial unit

基本解释

You can use metric or imperial units.
您可以使用公制或英制单位。
Convert more than 60 imperial and Metric (si) units – over 400 conversion combinations with a touch of a few buttons!
转换超过60帝国和公制（市）单位-超过400个转换组合1只需几个按键操作！
Unlike other elite Imperial units that often travel with the Imperial fleet, scout troopers are typically assigned to ground-based garrisons and installations.
跟其他常与帝国舰队一起行动的帝国精英部队不同，侦察兵一般被派给陆基驻防部队和军事设施。

But the Lockheed team was using imperial units, so data passed between the two groups were interpreted incorrectly.
ECONOMIST: Mishaps in space: Foolish, not ghoulish The
One, Mars Climate Orbiter, had a particularly humiliating crash, because the fault lay with a group of engineers who, in defiance of common sense, had continued to use imperial units of measurement in their calculations when all around had adopted the metric system.
ECONOMIST: Exploring Mars