The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is（）
- Athe rotate speed fluctuation
- Bthe ventilation tube clogged
- Cthe main engine accelerate so fast
- Dstormy wave
问题
The bearing of tailshaft sealing equip
参考解析：
分类：船舶电气与船舶安全题库
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