This personal submarine will dive deeper than any commercial subs out there currently being designed to dive up to a half mile down.

这艘个人的潜艇将比现在市面上其他可以潜到半英里以下的商业潜艇潜的深。

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The submarine firing follows underwater test launches from facilities on the Baltic and North Sea run by the WTD 71 Technical Centre for Ships and Naval Weapons in the second half of 2006.

海军武器WTD 71技术中心跟随从设施的水下试验发射在波儿地克和北海奔跑在2006下半年年。

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In March 1943 before the Allied convoy were all of the North Atlantic German submarine position, half of the attack, one-fifth was sunk.

1943年三月以前，所有北大西洋的盟军护航舰队均被德国潜艇定位，一半被攻击，五分之一被击沉。

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And the proceedings will necessarily slog through all the gory details of the biggest oil spill in U.S. history, forcing those of us who follow the oil industry to suffer flashbacks of the horrific explosion, oil-soaked beaches and those endless hours keeping half an eye on the submarine video feed of oil gushing from the Macondo well.

FORBES: Dear BP: Please Don't Make Us Go Through This Again

His latest work in progress is a submarine, complete with half-tonne propeller, that will take centre stage in a children's playground.

BBC: How to build a bigger, better corkscrew

The most common form of misconduct within the submarine service is going absent without leave, which accounts for about half the incidents.

BBC: Submariners punished for drunken misconduct