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一、本月知识学习指要１．长度测量是最基本的测量，刻度尺是其最常用的测量工具．使用刻度尺时应注意：观察它的零刻线、量程及最小刻度值；刻度线应贴近且平行于被测长度；视线与尺面垂直进行读数；测量结果应由准确值、估计值、单位构成．测量结果的准确程度由刻度尺的...
First, this month’s knowledge study refers to 1. Length measurement is the most basic measurement. The scale is the most commonly used measurement tool. When using the scale, you should pay attention to: observe its zero mark line, range and minimum scale value; the scale line should be close to and parallel to the measured length; the line of sight should be taken perpendicular to the scale surface; the measurement result should be accurate, estimated, and unit constitute. The accuracy of the measurement results by the scale...