This text introduce a verified method of direct current high voltage supply source making use of digit multimeter and voltage ratio standard in high voltage and high resistance measure instrument.
本文介绍一种利用高压高阻测量仪的电压比率标准与数字多用表测量直流高压电源的校准方法。
There is no standard method to test the blending ratio of some new textile fibers in home and abroad.
目前，我国乃至国际上对一些新型纺织纤维尚未有统一的测试混纺含量的方法及标准。
The paper described the theory of static headspace gas chromatography, including multiple phase equilibration method, various gas-liquid phase ratio method and standard adding method.
系统讨论了静态顶空气相色谱的原理，包括多次相平衡法、改变相比法和标准加入定量法。
应用推荐