The precondition of the acceleration testing method is the determination of the train resistance, rotary mass coefficient and train mass. The crucial test is measurement of train acceleration.
加速度测试法的先决条件是确定列车基本阻力、回转质量系数和列车质量，而其测试关键是列车加速度的测定。
This article lists the precondition, equipment and the calculation of the control points for static clearance checking test of metro vehicles. Further more, some improvement is put forward.
阐述了地铁车辆静态限界试验的前提条件、工装设备、控制点的计算及试验过程，并提出需进一步改进之处。
By adopting the vacuum carbon deoxidization process, the conformity ratio of steel in ultrasonic detection test is improved under the precondition of significantly reducing production costs.
通过采取真空碳脱氧的工艺，可以在较大的降低吨钢生产成本的前提下，提高钢板探伤合格率。
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