Every crossing has the fixed duty period , charges centre for being able to change it's period and in depending on a road when being crowded;

各路口有固定的工作周期，并且在 道路拥挤时中控中心能改变其周期；

youdao

The article describes a way of the system design and implementation. In order to achieve dynamic Emergency Management, real-time command and control of the fixed duty.

文中阐述该系统的设计与实现方法，以实现固定勤务应急管理动态化，指挥控制实时化。

youdao

Where the CIF or FOB price can not be ascertained, the price for duty assessment shall be estimated and fixed by the Customs.

到岸价格和离岸价格不能确定时，完税价格由海关估定。

youdao

The cash will be generated by imposing a 50p duty on all fixed line phones.

BBC: Decisions loom on rural broadband

Still his father said nothing, his eyes fixed on the view like a soldier on guard duty, determined not to miss the signal flare sent up by a savage tribe on a distant hill.

NEWYORKER: Town of Cats

If you can't commit to a fixed input process, you'll be missing out on keys made of heavy duty rubber.

ENGADGET: Nokia 7110 review Mobile