The first Jin-classboat was spotted in July 2007 on a satellite photo from late-2006.
他们最早现身的踪迹是 2007 年 7 月的一张卫星照片上。
2
The Virginia-class Block III submarines are being built by Northrop Grumman Shipbuilding and General Dynamics Electric Boat.
弗吉尼亚级Block III潜艇正由诺斯罗普·格鲁曼船舶公司和通用动力电船公司建造。
3
Decks under machinery, bollards, boat davit and other heavy concentrated loads to be reinforced by carling or welded doubler where necessary as approved by Class.