tandem wheels meaning in Chinese

后部双轴串列轮
双轴车轮

" bicycle " means every vehicle propelled solely by human power upon which any person may ride , having two tandem wheels , and including any vehicle generally recognized as a bicycle though equipped with two front or two rear wheels except a toy bicycle
"自行车"是指每一纯粹以人力驱动设备，其上任何人都可以骑坐，有两个直排轮，并包括任何普遍承认为自行车的车辆，虽然配备两个前轮或两个后轮，玩具自行车除外。
" toy bicycle " means every device propelled solely by human power upon which any person may ride , having two tandem wheels , including any device generally recognized as a bicycle though equipped with two front or two rear wheels , which has a seat height of not more than twenty - five inches from the ground when the seat is adjusted to its highest position ; or a scooter or similar device regardless of seat height
"玩具自行车"是指每台纯粹以人力驱动的设备，其上任何人都可以骑坐，有两个直排轮，包括任何普遍承认为自行车的装置，虽然配备两个前轮排或两个后轮，它有一个座椅，座椅调整到最高位置时，从地面计算起的高度不超过25 ? ?或滑板车或类似装置，无论其座椅的高度。