automatic block

• 自动闭塞装置,自动闭塞

automatic block的用法和样例：

例句

1. Automatic Block and Footing keys for material estimates.
   自动闭塞和落脚点钥匙材料估计。
2. By comparing the two formulas, the paper concludes that moving automatic block can reduce the train headway and improve the transportation capacity.
   通过对两公式的比对，得出了移动自动闭塞系统能够缩短列车的运行间隔，提高线路的通行能力。