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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You now have the choice, at assembly time, to override the usual type checking and create a wire between a property and an action of different types.

在组装时就需要进行选择，是覆盖常用类型检查，还是在不同类型的属性和行为之间创建连接。

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Then, According to the cutting tooth processing principle, establish hypoid gear model, and conduct virtual assembly, interference checking, provides the precise model for the following analysis.

再根据切齿加工原理，建立了准双曲面齿轮模型，并进行虚拟装配，干涉检查，为后面分析提供精确的模型。

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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