|
|
发表于 2008-9-1 17:44
|
显示全部楼层
来自： 中国上海
|
Redundant propulsion systems applicable to vessels where the propulsion system is of a redundant design such that at least 50% of the propulsion power can be restored after any single failure in the propulsion system, before the vessel has lost steering speed. |
|
提升卡
变色卡
