“caterpillar track”可以造什么句,caterpillar track造句
来源:语文精选馆 2.52W
In a foyer of the engineering department of Tohoku University in Sendai stands a handsome yellow robot with claws and caterpillar tracks.
The aluminum alloy caterpillar track, the friction factor is small, pulls the piece to be smooth, sur - stainless steel wear-resisting frame.