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这真是一个富含哲学意味的话题,其实计量就像空气一样,围绕在身边,不可或缺。仔细回想一下,随便一天的生活中,我们做了多少需要计量的事情呢?在清晨的阳光洒满大地,你起床开始一天愉快的生活,戴上眼镜(光学计量),看了看手表(时间频率计量),打开电视看看天气预报(温度计量),拧开燃气灶开关做个早餐(力学流量计量),用电磁炉烧壶热水泡杯咖啡(电磁计量、电离辐射计量),出门坐上自己的汽车(几何量
This is really a philosophical topic, in fact, measurement, like the air, around the side, indispensable. Carefully recall how many things we need to do in a casual day’s life? In the early morning sunshine, you get up and start a pleasant day, wear glasses (optical metrology), watch the watch (time Frequency measurement), turn on the TV to see the weather forecast (temperature measurement), unscrew the gas cooker switch to be a breakfast (mechanics flow measurement), cooker hot pot with coffee maker (electromagnetic measurement, ionizing radiation measurement) Own car (geometric quantity