This paper introduces the waterwall features and start-up procedure of domestic 600mw supercritical variable pressure operating once through boiler under development.

文中介绍正在研制的国产600 MW超临界变压运行直流锅炉水冷壁结构特点和启动过程。

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They can save a lot of time and money in start-up procedure calculations.

在开工过程计算中，它们可以节约大量的时间和资金。

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So the start-up operation procedure can be taken as finding the optimal operation path from various existing paths, and making the system transfer from the given initial state to the goal state.

因此，开车操作程序可以看从众多存在的路径中寻找一条优化的操作路径，使系统由给定的初始状态转移到目标状态。

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Or she might ask a boyfriend who wants to wait a few years to start a family to pony up for the procedure.

WSJ: Why I Froze My Eggs (And You Should, Too)