Dunkerque ' s face - hardened turret roof , designed to maximize resistance to ap bombs from aircraft , was hit by hood and is a perfect example of this problem.
敦刻尔克号表面硬化炮塔顶部的设计原意是最大限度地抗击空中落下的穿甲炸弹，却被胡德号击中就是个完美得例子。
S adopts high flatness, wear resistance, corrosion resistance of end face sealing piece on-off, sealed performance is good, long service life.
采用高平面度、耐磨损、耐腐蚀的端面密封片启闭，密封性能好，使用寿命长。
S adopts high flatness, wear resistance, corrosion resistance of end face sealing piece on-off, sealed performance is good, long service life.
采用高平面度、耐磨损、耐腐蚀的端面密封片启闭，密封性能好，使用寿命长。
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