A、(A)23500
B、(B)25000
C、(C)25200
答案:C
A、(A)23500
B、(B)25000
C、(C)25200
答案:C
A. (A)电位差
B. (B)机车速度
C. (C)柴油机转速
A. (A)20-22s
B. (B)18-20s
C. (C)15—18s
解析:解析:十道J442
A. (A)均衡风缸
B. (B)中均管
C. (C)制动管
解析:解析: J416
A. A.45℃
B. B.50℃
C. C.55℃