The next two xbrli:context elements define units of measure.

接下来的两个 xbrli:context 元素定义计量单位。

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Units of measure types for the International System of Units (SI).

适用于国际单位系统(si)的度量单位类型。

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There are two different standard units of measure for intervals because of the varying month lengths in calendars.

因为日历上变化的月份长度，所以对于时间间隔有两个不同的标准测量单位。

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"The percentage of vacant units in town centres is often quoted in headlines as a measure of their vitality, " the council said.

BBC: Plans to revamp Wrexham town centre to boost trade

Kirkpatrick's article went to press, moreover, it became apparent that even the employment of those "crack troops" -- U.S. Army Ranger and Delta Force units in Mogadishu -- is of a piece with this approach: Thanks in no small measure to the abysmal "operational security" that has come to characterize the U.N.

CENTERFORSECURITYPOLICY: Center For Security Policy

Both indicate that, if what they have seen really are Higgses, then the boson has a mass of about 125 giga-electron-volts (GeV), in the esoteric units which are used to measure how heavy subatomic particles are.

ECONOMIST: The Higgs boson: Fantasy turned reality | The