Under the old system, car-owners had to change their plates every time they moved from one département to another.

在旧车牌系统下，每次车主从一个行政区移居到另一个的时候就必须更换车牌。

youdao

In 2000, Shanghai decided to tighten restrictions on new car registrations, auctioning off a limited number of license plates annually.

2000年，上海市决定加大对汽车牌照的控制，每年通过拍卖发放有限数量的牌照。

youdao

In 2000, Shanghai decided to tighten restrictions on new car registrations, auctioning off a limited number of license plates annually. But it has gradually loosened the strictures.

2000年，上海决定限制对新车的牌照登记，每年只定量拍卖一些汽车牌照，但是这种限制性措施也被逐渐放宽。

youdao

This would involve setting up a cordon of about 230 video camera systems able to spot and read car number plates.

BBC: Colt gets London car toll contract

The Beijing government said it received nearly 40, 000 online applications for car license plates in the first 11 hours of 2011.

FORBES: Traffic Congestion In Beijing

Those who made it across the border told CNN's Chris Burns that Serb authorities in Yugoslavia made them hand over documents and car license plates, suggesting that they will not be allowed back into Yugoslavia.

CNN: Grief