capstan tugger winch三者究竟有何区别

区别是：

capstan 英[?k?pst?n] 美[?k?pst?n, -?st?n]

n. 绞盘，起锚机;

[例句]Sailors hove up the cable with windlass or capstan.

水手们用绞盘或起锚机把缆绳拉起来。

tugger 英['t?g?] 美['t?g?]

n. 拖拉器，拖拉式卷扬机;

[例句]So now you got tugger to bring you in.

而现在你让泰格把你带过来了。

winch 英[w?nt?] 美[w?nt?]

n. 绞车; 摇柄，曲柄;

vt. 用绞车拉;

[例句]He would attach a cable around the chassis of the car and winch it up on to the canal bank.

他会把钢丝绳拴在汽车底盘上，用卷扬机把汽车吊到运河岸上。