on completion
1. 结束时
Money will be paid half in advance and half on completion.
钱将预付一半, 完成后再付一半。
特殊用法analytic completion1.解析完备coherent completion1.凝聚求全model completion1.模型完全化route completion1.选路完成； 排路完毕single completion1.单层完井weak completions1.弱完备化well completion1.完井completion by cuts1.引割求全法completion of a measure space1.测度空间的完备化completion of a topological group1.拓扑群的完备化completion of a valuation1.赋值的完备化completion of progress1.完全及格， 圆满升级completion of representation1.表示的完备化completion of uniform space1.一致空间的完备化