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【单选题】

低压涡轮轴承腔为何有2个滚棒轴承?( ) Why the LP turbine shaft bearing chamber has two roller bearings?

A.
此处周向载荷大 because the circular load is more than others.
B.
最后的轴承只为封严 just only for seal.
C.
与高、中压涡轮轴承腔对称 for symmetry with HP and MP turbine shaft.
题目标签:涡轮轴轮轴低压
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