发动机可编程电子控制载重车发动机试验步骤
peec truck engine test procedure
发动机可编程电子控制载重车系统连接器
peec truck system connector
与发动机可编程电子控制有关的载重车系统的可靠性
peec related truck system responsibility
装有程序可控电子控制发动机的载重车
programmable electronic engine control equipped truck
二自由度起重机机架模型
two-degree-of-freedom crane system
机制重组
reconstruction of library’s mechanism
双重控制机制
dual-controlled mechanism