Combination operation with a holing-extraction and press regulator is a simple and practicable way by analyzing the practical project and two way features, and it should be broadly used in practice.
结合工程设计实践，讨论了两种方法的不同特点，提出了打孔抽汽和压力匹配器联合运行是一种简单实用的方法，建议在实际工程中积极选用推广。
The combination of these two parts just forms the method for determing the optimal operation of the cascade.
水电厂梯级日优化运行方式的计算是这两者的有机结合。
Methods: According to the different operation ways, two groups of combination of body-acupuncture and ear-acupuncture were adopted.
方法：按照手术两种入路方式，采用两组不同的体针加耳针穴位组合。
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