我们看见一艘潜艇浮出水面。
明级只有55名船员而不是70名，而且在潜艇浮出水面的情况下全部遇难也是非常离奇的事。
The Ming class boats have a crew of 55, not 70, and it would be unusual for everyone on board to be killed while the sub was on the surface.
通常电池只能运行最多12小时，故这类潜艇大部分间用柴油发动机推进。潜艇浮出水面或半浮出水面（使用二战时德国首先采用的Schnorkling装置）时必须用柴油发动机。
Normally, battery power is only good for a up to twelve hours of operation and such subs spend most of their time propelled by their diesel engines.
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