[名词解释] 推送线 pushing track
[名词解释] 驼峰推送部分 pushing section of hump
[名词解释] 目标速度target speed
[名词解释] 设计速度(Design Speed)
[名词解释] 连挂速度 coupling speed
[名词解释] 行车速度(running speed)
[名词解释] 牵引小车 pushing carriage
[单选题]The energy for pushing this piston up can be supplied from (), so that the piston can keep moving up and down.A . the same pistonB . the piston nearbyC . the other pistonsD . the generators on board
[填空题] 铺轨机自行还机车推送,速度以()为宜。
[单选题]当出现“SPEED,SPEED,SPEED”的语音警告时表示:()A .速度超限B .当前推力不足以通过俯仰操纵来恢复正常飞行C .速度偏离选择或管理的速度