Between the primary circuit的意思|示意

High voltage is applied between the two parts across the insulation being tested, such as the primary circuit and metal enclosure of the equipment under test (EUT).

高压施加于被试的两个相互绝缘的部件之间，例如被试设备的主电路与其金属外壳。

A comparison is made between the characteristics and technical requirement of helium circulators used in the primary circuit of high-temperature gas cooled reactors.

本文还将这些特点和高温气冷堆一回路氦气风机的技术要求作了比较。