How to translate English mechanical alligator?

"mechanical alligator" is translated into Chinese as "mechanical crocodile"

mechanical

English? [m? k? n? kl]? Beautiful? [m? k? n? kl]?

mechanical (aspect); Mechanical, dull; Skilled in machinery; Mechanical, mechanical;

n. a mechanic with exclusive recording rights; Laborer, craftsman

Bilingual example:

The breakdown? was? due to? a? mechanical? failure.?

the anchoring is caused by mechanical failure.

It? is? real? prayer,? and? not? mechanical? repetition.?

this is a real prayer, not a mechanical repetition.

This? is? the oldest? working? mechanical? clock? in? the world.?

this is the oldest mechanical clock in the world that can still be used.

alligator

English? [? l? ɡe? t? (r)]? Beautiful? [? l? ɡe? t? r]?

alligator; Alligator leather, crocodile-like material

adj. (boots, bags, etc.) Made of crocodile leather

[ plural alligators ]

Bilingual example:

He? was grappling? with? an? alligator? in a lagoon.?

He was fighting a crocodile in the lagoon.

It's? there? that? I? saw? my? first? wild? alligator.?

It was there that I first saw the wild alligator.

There's supposedly? an? alligator? in? one? of? their? bathtubs.?

It is said that there is a crocodile in their bathtub.