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person:(yang xiaowei)
Conversion system of one-machine multi-point traction turnout
CONVERSION SYSTEM OF ONE-MACHINE MULTI-POINT TRACTION TURNOUT
TRANSFER DETECTION ROD FOR CONVERSION EQUIPMENT, AND REVERSING METHOD
Transfer detection rod for conversion equipmentand method
Turnout switching equipment and method suitable for tramcar
RAILROAD SWITCH CONTACT GROUP CAPABLE OF PREVENTING ARC DAMAGE, AND METHOD