A fixed capacity compressor is usually fitted with an electromagnetic clutch giving the A/C system an ability to engage and disengage drive to the compressor.
一个固定电容压缩机通常配有一个电磁离合器，这两者共同作用使得A/C系统能够连接和断开到压缩机的驱动。
Li C Y. Yuan H Q. Yang L S Measurements of the mechanical and electromagnetic properties of rare earth giant magnetostriction materials.
袁惠群。李成英。周卓稀土超磁致伸缩材料应力与电磁耦合特性的实验研究。
SIGINT(Signal Intelligence) satellite is used to detect, intercept a nd locate electromagnetic(EM) signals radiated by systems such as ground radar, communication and TT&C systems.
信号情报侦察卫星用于侦收地面雷达、通信和测控等系统所辐射的电磁信号并对其 定位，是航天侦察的重要手段。
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