针型阀比其他阀门更能受压，密封性能好，所以一般用于较小流量，较高压力的气体或者液体介质的密封，还可与压力表配合使用。
Needle valve pressure better than other valves, sealing performance, it is generally used for small flow, high pressure gas or liquid sealing medium, also used in conjunction with the pressure gauge.
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。
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.
文章介绍一种检定直流高压静电电压表的方法，并对其进行不确定度分析。
An inspecting method was introduced for the DC static high voltage meter and the analysis for its uncertain-ty was given out.
论文作者研制了一种基于单片机的智能式高压电压表。
A smart voltmeter based on a single chip computer for high voltage testing is developed.
新型高压电能表必须采用整体误差校验系统来定义准确度等级。
The accuracy grade of novel HVEM must be defined by integrated error calibration system.
新型高压电能表必须采用整体误差校验系统来定义准确度等级。
The accuracy grade of novel HVEM must be defined by integrated error calibration system.
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