housing covef for timing gear
... housing chain stopper 航行时固定锚的制动链 housing covef for timing gear 正时齿轮室盖 housing for timing gear 正时齿轮室 ...
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在正时齿轮室盖的结构设计中，增强刚度和降低重量是相互矛盾的。
In the structure design of gear chamber casing, strengthen rigidity and reducing weight were contrary.
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