But a generator goes a bit further than a closure: a generator also "remembers" its position within flow-control constructs (which, in imperative programming, is something more than just data values).

但生成器比“终止”要更进一步：生成器还“记住”了它在流控制构造(在命令式编程中，这种构造不只是数据值)中的位置。

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Under the flow for spool valve closure and relatively easy changes in fluid pressure and flow and less.

对于阀芯下流动，阀门相对地容易关闭而且流体压力和流量变化和少。

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Swing-type check off er the least pressure drop and offer simple automatic closure; when fluid flow stops gravity and flow reversal closes valve.

旋启式止回阀压降最小，能够完全自动关闭，即在介质流动停止、重力和介质倒流的状态下自动关闭阀门。

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The company said the closure was necessitated by weak volcanic rock above the ore deposit which allowed water to flow into the mine.

FORBES: The perils of mining