The principle and method for testing surface crack through direct current potential difference are introduced.
首先介绍了直流电位法——裂纹扩展片检测裂纹的方法和原理。
Trade fairs offer direct contact with current and potential customers and a venue to launch products that will reach opinion-formers (such as journalists).
展销会提供了与现有及潜在客户的直接接触，上市会则可以让媒体了解（例如记者）。
Through electrostatics and examples of low-frequency alternating current and direct-current circuit, the problem of zero potential point is queried and clarified.
通过静电学、低频交流、直流等电路实例，质疑了电势零点问题，并对此进行了澄清。
The paper briefly describes the theory of direct current sensor based on magnetic potential self-balance and feedback compensation and the structure of prototype machine based on this theory.
磁势自平衡回馈补偿式直流传感理论是在电抗器磁势自平衡原理与差值电流回馈补偿原理的基础上，将两者相结合而形成的一种新的传感原理与方法。
The newly direct current transmission (VSC-HVDC) technology is refers USES full-controlled semiconductor device, and potential source converter based direct current transmission technology.
新型直流输电(VSC - HVDC)技术是指采用全控型功率半导体器件的电压源换流器的直流输电技术。
The newly direct current transmission (VSC-HVDC) technology is refers USES full-controlled semiconductor device, and potential source converter based direct current transmission technology.
新型直流输电(VSC - HVDC)技术是指采用全控型功率半导体器件的电压源换流器的直流输电技术。
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