apical disk是什么意思

用法例句

Study on energy store and release of mining field large area hanging arch system;

采场大面积悬顶系统贮能及释放研究

Electric control of the belless top system;

高炉炉顶系统的电气控制

the arrester system can make moving wagons stop at the appointed place and make the wagon not runaway in the arrester area.

停车顶系统能够有效地保证运动车辆安全地停留在指定的范围内,还能够保证停留车辆在停车区内不溜逸,是一种安全可靠的停车防溜设备。