货车脱轨自动制动装置
automatic braking equipment at time of derailment of wagons
挠性印制板(FPC)安装技术
flexible printed circuit(FPC)mounting technology
比例电磁铁-机械制动装置
propitiation electromagnet mechanical restraining device
大功率动态制动装置
high power dynamic braking device
电动液压制动装置
electro-hydraulic actuator