When supplying a small transmitter loop device with power current, the strength of signal as same as that produced by a large transmitter loop can be obtained.
当对小发射回线装置供以大电流时，同样可以得到和大发射回线相当的信号强度。
When supplying a small transmitter loop device with power current, the strength of signal as same as that produced by a large transmitter loop can be obtained.
当对小发射回线装置供以大电流时，同样可以得到和大发射回线相当的信号强度。
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