我们必须先测量电线的直径。
对通电线圈的电流及环境温度进行测量的实验结果与理论分析相吻合。
The experimental results of measuring the current of a coil and the environmental temperature agree well with the theory.
在传统的超高压输电线路设计选线中，较落后的测量方式手段和年代久远的地图是导致设计误差的重要原因。
In traditional EHV line routing design, unsophisticated surveying methods and aging maps are the main sources of design error.
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