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A unit of length equal to one hundred-millionth(10-8) of a centimeter, used especially to specify radiation wavelengths.
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埃长度单位，等于一厘米的百万分之一（10－8），用来记录辐射波长 |
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A unit of length equal to one millionth(10-6) of a meter. No longer in technical use.
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微米等于百万分之一（10－6）米的长度单位。不再用于科技 |
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A unit of length equal to one thousandth(10-3) of an inch(0.0254 millimeter), used, for example, to specify the diameter of wire or the thickness of materials sold in sheets.
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密耳长度单位，等于一英寸的千分之一（10－3）（0。0254毫米），如用来标明电线的直径或按页出售的材料的厚度 |
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A unit of length used in surveying, equal to0.01 chain, 7.92 inches, or about20.12 centimeters.
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令测量用长度单位，等于0。01测链，7。92英寸或约等于20。12厘米 |
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A unit of measure for the fineness of gold, equal to!/24 part. Pure gold is24 karat; gold that is50 percent pure is12 karat.
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开测量黄金纯度的单位，等于24等分中的一分。纯金为24开；50％纯度的黄金为12开 |
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A unit of measurement equal to the length of either of these instruments.
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测量单位等于这两种工具长度任一种的一个测量单位 |
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A unit of power equal to one thousandth(10-3) of a watt.
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微瓦电学单位，等于千分之一（10－3）瓦 |
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A unit of pressure equal to one newton per square meter.
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帕斯卡压力单位，相当于每平方米一牛顿 |
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A unit of retinal illumination, equal to the amount of light that reaches the retina through 1 square millimeter of pupil area from a surface having a brightness of 1 candela per square meter.
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光度视网膜亮度单位，相当于每平方米有一烛光亮度的表面，通过一平方毫米的瞳孔区域，到达视网膜的光线数量 |
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A unit of temperature equal to 1/273.16 of the Kelvin scale temperature of the triple point of water.
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中义凯氏的一个单位(一度)等于水三相变化範围的273.16分之一。 |
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A unit of time corresponding approximately to one cycle of the moon's phases, or about30 days or4 weeks.
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月大约和月亮盈亏的一个周期相当的时间单位，或约三十天或四周 |
