无限制

This paper describes volume magnetic susceptibility of weights and the importance of its testing. We also introduce the method of how to measure the weight susceptibility ,and analyze uncertainty of measurement.

本文详细阐述了国际建议推荐的几种砝码磁化率的测量方法，最后以磁化率计法为例介绍了砝码磁化率的测量原理、方法及不确定度分析。

Use this system to improve the efficiency that student government works and quality effectively.

使用该系统可以有效地提高学生管理工作的效率和质量。