A.20 B.15 C.10 D.0
A.飛濺潤滑 B.自然潤滑 C.強制潤滑 D.柴油潤滑
A.1-5-3-6-2-4 B.1-5-3-2-4-6 C.1-5-3-6-4-2 D.1-5-3-4-2-6