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Vietnamese units of measurement (Vietnamese: hệ đo lường Việt Nam) are the largely decimal units of measurement traditionally used in Vietnam until metrication. The base unit of length is the thước ( chữ Nôm : 𡱩 ; lit. "ruler") or xích ( chữ Hán : 尺 ).
Syrian units of measurement; T. ... Vietnamese units of measurement; W. Welsh units This page was last edited on 27 April 2020, at 02:29 (UTC). ...
The same Chinese character was used for the Japanese sen, the former unit equal to 1 ⁄ 100 of a Japanese yen, the Korean chŏn (revised: jeon), the former unit equal to 1 ⁄ 100 of a Korean won, and for the Vietnamese tiền, a currency used in late imperial Vietnam, although none of these has ever been known as "mace" in English.
The first group of metric units are those that are at present defined as units within the International System of Units (SI). In its most restrictive interpretation, this is what may be meant when the term metric unit is used. The unit one (1) is the unit of a quantity of dimension one. It is the neutral element of any system of units. [2]
The basic unit of length in the imperial and U.S. customary systems is the yard, defined as exactly 0.9144 m by international treaty in 1959. [2] [5] Common imperial units and U.S. customary units of length include: [6] thou or mil (1 ⁄ 1000 of an inch) inch (25.4 mm) foot (12 inches, 0.3048 m) yard (3 feet, 0.9144 m)
The most common government measure was the Kuping (庫平; kùpíng; 'treasury standard') tael, weighing 37.5 grams (1.21 ozt). A common commercial weight, the Caoping ( 漕平 ; cáopíng ; 'canal shipping standard') tael weighed 36.7 grams (1.18 ozt) of marginally less pure silver.
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The unit of time should be the second; the unit of length should be either the metre or a decimal multiple of it; and the unit of mass should be the gram or a decimal multiple of it. Metric systems have evolved since the 1790s, as science and technology have evolved, in providing a single universal measuring system.