dual wheel
... dual purpose 双用途的 dual wheel 双轮 dual 二重的 ...
double round
Double Round(双轮), 此释义来源于网络辞典。
Dual circulating
... 挑轮Pick circulating 双轮Dual circulating 二弦轮2-string circulating ...
quadriga ; Chariot ; strijdwagen ; biga
double tire ; twin tire
Sidecar ; dogcart ; Sulky ; Gig