transportation作为交通工具是不可数名词。
n. 运输运输系统运输工具流放
Transportation was paralysed .交通瘫痪。
The transportation bottleneck has blocked the movement of the cargo .运输的困难阻塞了货物的流通。
The american simply regards a car as a means of transportation .美国人把汽车纯粹看成是一种运输工具。
I told you that this question of transportationwas difficult .我跟你们说过，这个运费问题是很棘手的。
The nominal diameter has little significance in sediment transportation .等容粒径在沉沙输移中意义不大。
transportation作为交通工具是可数名词吗
不可以 一般来讲，结尾为-tion后缀的名词是抽象名词是不可数名词（nation的-tion不是后缀所以不在此规则内）
