求翻译：线圈靶测速是一种行之有效的弹丸速度测量方法，在使用线圈靶测速时需要进行标定。为提高标定的准确性，就要对其标定过称中的各种影响因素进行分析。是什么意思？

Target coil gun is an effective projectile velocity measurement methods need to be calibrated using the coil target gun. To improve the accuracy of the calibration, it is necessary to its calibration hereinafter referred to various factors affecting the analysis.

Coil the target speed is a proven speed of tiny measurement method, the target speed with the coil you need to calibrate. In order to enhance the accuracy and calibration of their calibration will be in the said the variety of factors for analysis.