Is the cargo ship semi-submersible? If not, how does the barge get off the ship?

这个货船是半沉式的么？这个吊车怎么下来？

youdao

Is the cargo ship semi-submersible? If not, how does the barge get off the ship?

这个货船是半沉式的么？这个吊车怎么下来？

youdao