Due to need for the development of portable motor meter assembly checking box, a kind of frequency signal generator is designed, detailed design principle and idea are discussed.

针对“便携式汽车仪表总成校验箱”系统的开发需要，设计了一种用于汽车电子转速表、里程表校验的频率信号发生器，论述了电路的设计原理和设计思想。

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Polls for the Nagaland assembly are due on 23 February and strict checking is being carried out to prevent any irregularities by candidates.

BBC: India Nagaland home minister resigns after arrest

Earlier, the Welsh Assembly stressed it was only new teachers and those returning from a career break who needed checking - those previously cleared by another education authority can go straight into the classroom.

BBC: Heads given teacher clearance powers