I did not know if they used the metric or the imperial system of measurement.

我不知道他们是用公制还是英制单位。

youdao

A unit of volume or capacity in the British Imperial System, used in liquid and dry measure, equal to1.201 u.

夸脱英国度量体系中的一体积或容量单位，用于测量液体和固体，相当于美制液量中的1。

youdao

A unit of volume in the British Imperial System, used in liquid and dry measure, equal to4quarts (4.546liters).

英制加仑英国度量衡系统用于液体和干容量单位，等于4夸脱4。

youdao

What China is seeking is to refine its governance to overcome the shortcomings of a 2500 year old (from unification 221 BC) imperial system.

FORBES: Looking for China's Democratic Path

Before he became an outlaw, Song was a small official in a local court, and his biggest ambition was to serve the imperial system.

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But try as they did, they found it difficult to unravel the foreign technology from the values that produced it, and China's imperial system soon collapsed.

ECONOMIST: The Middle Kingdom struggles with being wired