delay bed train  延迟床系统; 滞留装置

power train testing and adjusting  传动系的试验与调整

truck power train testing and adjusting  载重车传动系试验和调整

gear testing bed  齿轮试验台

oil-pump testing bed  喷油泵试验台

safety valve testing bed  试验台

test-bed testing  样机试验

testing bed  试验台

Testing-bed  试验台

testing-bed test  试验台试验

monolithic track bed；solid bed；integrated ballast bed；monolithic concrete bed  整体道床

Train bridge and train track time varying system  车桥及车轨时变系统

train driver and train-attendant  铁路司乘人员

train speed increase and train working diagram adjustment  提速调图

Physical Testing and Chemical Analysis Part A:Physical Testing  理化检验-物理分册

Road-testing and bench-testing  路试与台试

testing item testing function  测试功能函数

annual temperature difference between track bed slab and bed plate  道床板和底座板年温差

bed-by-bed analysis  逐层分析