Chemistry milling is a method of part forming in definite solution under the certain condition, which is easy control and equality allowance.
化学铣切成型是将零件置于一定的化学溶液中，在特定条件下，对零件腐蚀加工成型的工艺方法。
The main cause is that the limitation of the condition of equality in metal flowrate has no been broken through.
分析其原因，主要是在控制器设计上未能突破秒流量相等条件的局限性。
A discrete variable structure composite control strategy which use an equality form of the reaching condition is proposed and applied to design the load_frequency controller.
提出了一种等式到达条件下的离散变结构组合控制策略，设计了基于该控制策略的负载频率控制器。
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