air-core

基本解释

If a coil has no metal core it has an air core.
如果线圈没有金属芯子，它就有一个空气芯子。
If a coil has no metal core it has an air core .
如果线圈没有金属芯子，它就有一个空气芯子。
Through over voltage on-line monitoring device testing, inquire into lightning protection of the reactor with air core.
并通过安装过电压在线监测装置进行测试的方法,初步探讨了空心电抗器防雷的作用。
The results show that the size,position and flow pattern of air core should be controlled,in order to keep the stability of hydrocyclone.
研究结果表明，为了使旋流器保持稳定，要合理控制空气核的大小、位置及流动形态分布。
Optically powered air core current transformer applied in circuit breaker is reported in several aspects including the theory,the structure and the properties.
介绍了一种应用于断路器中的光供电式空心电流互感器的原理、结构及性能。