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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 |
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A unit of type width based on the number of times a character can be set in one linear inch.
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印字宽度的单位，以一英寸直线距离上能安置的字符数计。 |
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A unit of volume in the British Imperial System, used in liquid and dry measure, equal to4 quarts(4.546 liters).
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英制加仑英国度量衡系统用于液体和干容量单位，等于4夸脱（4。546开） |
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A unit of weight equal to2,240 pounds(1.016 metric tons or1,016.05 kilograms).
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长吨一个重量单位，等于2，240磅（1。016公吨或1，016。05千克） |
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A unit of weight for precious stones, equal to200 milligrams.
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克拉宝石的重量单位，等于200毫克 |
