U.S. customary units and their S.I, or metric, equivalence.
美国惯用单位及其 S.I 或公制等值。
Customary unit
原声例句
TED-Ed（视频版）
冷知识百科大全
The US uses customary units everywhere except for here, on one road in Arizona.
美国在任何地方都使用习惯单位， 除了这里，在亚利桑那州的一条路上。
切达科学解读
The stuff we buy from multinational companies is designed and produced to metric specifications from your toothpaste to your car, even if it ends up with US customary units on the label.
我们从跨国公司购买的东西都是按照公制规格设计和生产的，从牙膏到汽车，即使最终标签上的单位是美国惯用单位。
英语百科
System of measurement
（重定向自Customary unit）
A system of measurement is a collection of units of measurement and rules relating them to each other. Systems of measurement have historically been important, regulated and defined for the purposes of science and commerce. Examples of systems of measurement in modern use include the metric system, the imperial system, and United States customary units.
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