Appending a veto control and a gate signal amplifier in the circuit, MCA can be operated in both pile-up rejection mode and anticoincidence mode.

电路内附反符合控制输入和门信号放大器，可实现对多道分析器的堆积拒绝和反符合控制。

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The phase detecting error caused by local oscillator frequency drift and non-synchronization of measurement signal and gate signal is eliminated and the measurement speed is improved at the same time.

该方法可以有效的消除因本振信号频率漂移及闸门信号与被测信号的非同步引起的测相误差，同时提高了测量速度。

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Hitachi is working with Nippon Signal and the University of Yamanachi to build a new boarding gate that hopefully kills those two security birds with one stone.

ENGADGET: Hitachi boarding gate can sniff explosives on passes, keep the transport queues flowing (video)