三相绕组，四线连接。
设计成只有两条引线的器件有的时候很难进行四线连接。
It is sometimes difficult to make a four-wire connection to a device designed for just two wires.
太阳电池组件采用四线连接，以及高速数据采集系统，确保了太阳电池电流测量的准确性。
The solar cell module adopts four-wire connection. It uses high-speed data acquisition system. It ensures the accuracy of the current measurements of the solar cell.
夹具4是四线法信号的输出，只要信号连接正确，则可以直接与其它夹具连接对电池进行测试。
Clamp 4 is 4-wire signal output; as long as signal connection is correct, it may be connected to other clamp directly to measure battery.
带箭头和可调线间距的四线肘形连接线。
Four-line elbow connector with arrowheads and adjustable line spacing.
使用微欧计进行电阻测量必须采取四线技术以使测试电缆和连接器带来的误差减至最小。
Measurements made using the micro-ohmmeter are always performed using the four-wire technique in order to minimize errors caused by test leads and connections.
此观测系统可以简单的互联网连接同时监控从一个地方发出的超过256个摄像设备的四线、16轨道的数据。
The station can control and monitor up to 256 cameras from one remote point, with full quad, and 16-channel multisite viewing and simple network connection via Ethernet.
绕组 ，四线三角形连接，接地或不接地。
Three-phase winding, zigzag connection, ungrounded or grounded.
绕组 ，四线三角形连接，接地或不接地。
Three-phase winding, zigzag connection, ungrounded or grounded.
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