n. （挂车）前转向架；前导轮架
1.Not whole body of a modern subway car is made of metal. This one here is a forecarriage of leading RA-2 car; made of plastic.
现代地铁车厢并非全身都是金属组成。这个是RA - 2车头的头盖，是塑料制成的。
2.Not whole body of a modern subway car is made of metal. This one here is a forecarriage of leading RA-2 car; made of plastic.
现代地铁车厢并非全身都是金属组成。这个是RA - 2车头的头盖，是塑料制成的。
3.This one here is a forecarriage of leading RA-2 car; made of plastic.
这个是RA - 2车头的头盖，是塑料制成的。