常用单位名称及其符号
作者：cad 提交日期：2008-11-20| 分类: | 访问量：
常用单位名称及其符号
本帖被 huanping98 从 Technical English(or other languages) Forum 移动到本区(2007-11-23)
Length
Symbol: l
SI unit: Metre
Symbol: m
Conversion into other valid units:
1 m = 100 cm = 1000 mm
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Width
Symbol: b
SI unit: Metre
Symbol: m
Conversion into other valid units:
1 m = 100 cm = 1000 mm
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Height/depth
Symbol: h
SI unit: Metre
Symbol: m
Conversion into other valid units:
1 m = 100 cm = 1000 mm
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Radius
Symbol: r
SI unit: Metre
Symbol: m
Conversion into other valid units:
1 m = 100 cm = 1000 mm
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Diameter
Symbol: d, D
SI unit: Metre
Symbol: m
Conversion into other valid units:
1 m = 100 cm = 1000 mm
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Distance
Symbol: s
SI unit: Metre
Symbol: m
Conversion into other valid units:
1 m = 100 cm = 1000 mm
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Work
(energy)
Symbol: W
SI unit: Joule
Symbol: J
Conversion into other valid units:
1 J = 1 Ws = 1 Nm
Formula: W = F·s
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Acceleration
Symbol: a
SI unit: Metre per second squared
Symbol:
Conversion into other valid units:
Acceleration due to gravity
Formula:
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Density
Symbol: ρ
SI unit: Kilogramme per cubic metre
Symbol:
Conversion into other valid units:
Kilogramme per cubic decimetre
Formula:
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Rotational speed
Symbol: n
SI unit: Revolutions per second
Symbol:
Conversion into other valid units:
Formula:
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Pressure
Symbol: p
SI unit: Newton per square metre
Pascal
Symbol:
Pa
Conversion into other valid units:
1hPa = 100 Pa = 1 mbar
Formula:
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Area
Symbol: A, S
SI unit: Square metre
Symbol: m²
Conversion into other valid units:
Formula: A = l·l
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Velocity (speed)
Symbol: v
SI unit: Metre per second
Symbol:
Conversion into other valid units:
Formula:
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Force
Symbol: F
SI unit: Newton
Symbol: N
Conversion into other valid units:
Formula:
(Weight)
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Power
Symbol: P
SI unit: Watt
Symbol: W
Conversion into other valid units:
Formula:
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Mass
Symbol: m
SI unit: Kilogramme
Symbol: kg
Conversion into other valid units:
1 kg = 1 000 g
1 t = 1 000 kg = 1 Mg
Formula: m = V · ρ
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Temperature
Temperature-Celsius
Symbol: T, θ
SI unit: Kelvin
Symbol: K
Conversion into other valid units:
Celsius °C
Temperature differences are given in K
Formula: 0 °C = 273,15 K
0 K = -273,15 °C
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Volume
Symbol: V
SI unit: Cubic metre
Symbol: m³
Conversion into other valid units:
1 m³ = 1 000 dm³
1 dm³ = 1 l
Formel: V = A·h
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Flow
Symbol:
SI unit: Cubic metre per second
Symbol:
Conversion into other valid units:
Litre per minute
Formula:
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Time
Symbol: t
SI unit: Second
Symbol: s
Conversion into other valid units:
1 s = , 1 h = 60 min
本文摘自：http://www.jxcad.com.cn/read.php?tid=471441&fpage=2
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