青岛蛟龙号7000米深潜准备已达要求(视频)
China will build 250-ton level deep-sea space
The “Sea Dragon” manned submersible also successfully completed the last time of 7000-meter level sea trial on June 30th.
航母访港 7000水兵绝口不提海葬拉登
交7000多应聘海员 却被派去当“渔民”
“蛟龙号”将潜入7000米深海
流入松花江7000化工桶已捞起1600只