弧度测量（arc measurement）是测定地球形状和大小的一种方法。在过去，是通过测定地面两点问的子午线弧长，再用天文测量测定这两点的纬度，由此推算出地球子...
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arc measurement along meridian 子午圈弧度测量
parallel arc measurement 纬线弧线测量
oplique arc measurement 斜弧度测量
meridianal arc measurement 子午线弧度测量
meridional arc measurement 子午线弧度测量
measurement of arc 电弧测试
And has a CNC vertical lathe, boring machine large landing, automatic gap submerged arc welding, electro-optical tracking cutting machine and a variety of measurement test equipment.
且拥有数控立式车床、大型落地镗床、自动间隙埋弧焊、光电跟踪切割机以及各类计量检测设备。
Measuring technique such as coordinate method , arc chord offset method and internal control measurement are applied .
施工测量中运用坐标法、圆弧弦线支距法以及内控法等多种测量法。
Based on the study of the arc harmonics measurement, a method called divided-error is introduced to improve the phase measurement accuracy in this paper.
根据研究“电弧炉对电网的影响机理及对策”时相位检测精度的问题，提出了提高谐波相位检测精度的解决方法。
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