以下是一些类似的或相关的，看看是否是你想要的（供参考）：

1. on admission 进入……时

On admission to hospital, you will be examined by a doctor. 入院时，医生要为你做体检。

All patients are examined on admission to the hospital. 所有病人入院时都要经过身体检查。

2. on arrival 一到达，刚到达，在到达时

Guests receive dinner upon arrival at the hotel. 客人一到宾馆就可以用餐。

The victim was dead on arrival at the hospital. 这个受害者到达医院的时候就死了。

All visitors must sign the book on arrival and again on departure. 所有访客都必须在到达和离开时在本子上签名。

On arrival at the police station, they were taken to an interview room. 一到警察局，他们就被带到问讯室。

3. on completion 一完成，完成时，完成后

The committee will report back to us on completion of the study.  研究完成后，委员会将再向我们报告情况。

4. on conviction 一经定罪，定罪后

an offence which carries, on conviction, a sentence of not more than five years’ imprisonment 定罪后可判处五年或以下监禁的罪行

5. on delivery 送达时，一送达

Please pay the driver on delivery. 货到时请付给司机送货费用。

You can pay for the carpet on delivery (= when it is delivered). 地毯可以贷到付款。

Do I need to pay now or will you take cash on delivery? 我现在交钱还是货到付款？

The restaurant pays cash on delivery for fish, which the local fishermen like.  这家饭店买鱼采用货到付款的方式，受到当地渔民的欢迎。

6. on departure 一离开，离开时

All visitors must sign the book on arrival and again on departure. 所有访客都必须在到达和离开时在本子上签名。

7. on enrolment 在注册时

The full fee is payable on enrolment. 所有费用在注册时缴付。

8. on receipt (of) 收到…后

The goods will be sent on receipt of your cheque. 收到支票后会立即发货

Usually we ask for payment on receipt of the goods. 我们通常要求对方货到付款。。

9. on registration 一经登记

You will receive a free CD on registration with the club. 在这个俱乐部登记会获得一张免费CD。

10. on graduation 一毕业，毕业后

On graduation, he plans to travel around Asia. 他计划一毕业就到亚洲各地旅行。

On graduation from college, she got a good job. 她一毕业就找到了一份好工作。

On graduation, Nancy became an art teacher. 南希毕业以后当了一名美术老师。

11. on application 一经索取

Tickets may be bought on application to the theatre. 可向剧场购买戏票。

Keys are available on application to the principal. 向校长申请就可得到钥匙。

A permit is available on application to the company. 向公司申请就可得到许可证。

12. on impact 一经撞击，当撞击时，撞击后

The bomb exploded on impact. 炸弹在撞击时立即爆炸。

The atomic particles break apart on impact with others. 原子互相撞击后破裂。

The car had spun through 180 degrees on impact.  这辆车由于受到冲撞转了180 度。

Air bags in cars are designed to inflate automatically on impact.  汽车里的气囊能在受到冲击时自动充气。