hatch cover

常見(jiàn)例句

It is mainly engaged in ship hatch cover, steel products, machinery steel-port, the hull section, and marine engineering.
主要經(jīng)營(yíng)范圍：船舶艙口蓋，鋼結(jié)構(gòu)產(chǎn)品，港口機(jī)械鋼結(jié)構(gòu)，船體分段，海洋工程。
This paper explains the performance and specialty of the single-cover bi-directional bearing hatch, and introduces its composition, structure and manufacture technology in brief.
敘述了單蓋雙向承壓出入艙口裝置的性能特點(diǎn)，并對(duì)其組成、結(jié)構(gòu)形式及制造工藝作了簡(jiǎn)要介紹。