hao [Chinese.毫]

In China, 3rd century bce – 21st century, various small units.

In the 20^th century (UN 1966), three units:

• a unit of length, approximately ¹/₃₀ millimeter. A unit in the shì zhì system.
• a unit of area, approximately ²/₃ square meter.
• a unit of mass, = 5 milligrams. A unit in the shì zhì system.

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Last revised: 8 May 2001.