Only one defragment operation is allowed on a partition at a time.

在一个分区上，仅允许同时进行一个碎片整理操作。

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The effect of this is that if an event handler implements a request-response operation, then only one instance of such an event handler may be active at any point in time.

此规定的结果是，如果某个事件处理程序实现了一个请求-响应操作，则在任何时间点，只能有一个此类事件处理程序的实例处于活动状态。

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If you enter a number of resizing and moving operations into GParted and the operation fails, you can try entering just one operation at a time and then immediately clicking the Apply button.

如果您开始进行大量的调整以及将操作移到GParted的工作，而操作失败，那么您可以尝试一次只输入一个操作，然后立即单击Apply按钮。

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We subtracted neither taxes on this income, which will presumably be sheltered by depreciation deductions, nor operating costs. (At any one time, Don Jr. has a half-dozen people helping him on the licensing operation.) But neither did we add for the potential from future deals not yet signed, the going concern value of the operation.

FORBES: How Much Is He Worth?

The Center for Security Policy strongly believes that the Defense Authorization conferees should insist upon the continued operation of the SR-71 until such time as a replacement aircraft one with at least equivalent capabilities is in operation .

CENTERFORSECURITYPOLICY: Center for Security Policy | Congress Must Preserve A Vital Strategic Reconnaissance Capability �� The SR-71