單項選擇題接觸網(wǎng)多功能檢修作業(yè)車車輪直徑為()
A.840mm
B.920mm
C.1050mm
D.1250mm
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1.單項選擇題TQJ-09(鈦合金)/TQJ-09A(合金鋼)50t雙級起復機具頂升油缸高度()
A.300mm
B.320mm
C.350mm
D.420mm
2.單項選擇題JW-4G接觸網(wǎng)作業(yè)車車寬為()
A.3055mm
B.3118mm
C.2855mm
D.3200mm