The locks are released when the process ends or when a commit operation releases locks that were acquired during a unit of work (UOW).

当进程结束，或者当提交操作释放在工作单元(unit of work, UOW)期间获得的锁时，锁就被释放。

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In chemical engineering and related fields, a unit operation is a basic step in a process.

在化学工程及相关领域，一个单位的运作是一个过程基本介入。

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Distillation is the most common method to separate liquid mixtures, while it is also one of the biggest energy consuming unit operation in process industries.

精馏是分离互溶液体混合物最常用的方法，也是化学工业中最大的能耗单元操作之一。

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