全部

1·To meet the need of exploitation of the South China's sea oil, the CNOOC is building China's first deepwater pipelay derrick vessel, which can pipe to 3000 metres deep.

为了满足开采南海深水石油的需要，中海油建造了我国第一艘深水起重铺管船，它的铺设水深达到3000米。