这些物料可处于两种状态之一：未放行或检测中，但它们都受到与待验品一样的限制。

These Materials may have an alternative Status identified as Unreleased or On-Test, but these bear the same restrictions as Quarantined.

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这意味着业务状态机始终处于两种状态之间，因此无法接受诸如请求取消订单之类的其他操作。

This would mean the business state machine is between states and thus would not be able to accept other operations, such as a request to cancel the order.

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脉冲激光器是另一类的激光器，它的脉冲是在“开”与“关”两种状态的振荡之间产生。 当激光器处于“开”的状态，产生光，在“关”的状态，光量显著减少。

There is another class of lasers, however, that pulse, oscillating between an "on" stage, where light is produced, and an "off" stage, when the amount of light is dramatically reduced.

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