A.60 B.80 C.100 D.120
A.10 B.13 C.15 D.18
A.液压油缸 B.压缩风气缸 C.电机 D.油马达
A.92% B.93% C.95.5% D.98%
A.≥93% B.≥94% C.≥80% D.99.30%
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