The activity to re-fill the stock should perhaps be a sub-process, and the ship book activity should be notified with an event when this sub-process is ready.
重新入库的活动很可能应该是一个子流程，当子流程准备就绪，送书活动应该得到通知。
The activity to re-fill the stock should perhaps be a sub-process, and the ship book activity should be notified with an event when this sub-process is ready.
重新入库的活动很可能应该是一个子流程，当子流程准备就绪，送书活动应该得到通知。
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