Like any highway system, the federal airways have their main trunk line.
同任何公路系统一样，联邦航空线路也有其主航线。
The main idea of this paper is indicating and discuessing one off-line electronic cash system.
本论文的中心论点是提出并分析一种离线的电子货币系统。
Our system is on line to the main computer.
我们的系统是和主机相连的。
It will discuss two main scheme of divisibility in off-line electronic cash system at present.
探讨在离线电子现金系统中的两种当前最主要的可分性解决方案。
It is also the main system of sand production line of sand blasting equipment.
它也是制砂生产线的主要制砂设备之一。
It is also the main system of sand production line of sand blasting equipment.
它也是制砂生产线的主要制砂设备之一。
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