A.7.2mm B.7.6mm C.15.2mm D.16mm
A.道岔轉(zhuǎn)換時(shí)間 B.付機(jī)動(dòng)作時(shí)間 C.道岔轉(zhuǎn)換力 D.主機(jī)和付機(jī)轉(zhuǎn)換時(shí)的同步
A.25至30KN B.27至30KN C.27至29KN D.26至30KN