A、hydraulic fluid contamination
B、excessive fluid friction
C、turbulent fluid flow
D、fluid pressure surges
更多“Hydraulic machinery failures are commonly caused by misalignment of the system components and by （）.”相关的问题
A、steam plants, electric motors and compressed air B、diesel engine, hydraulic machinery and compressed air C、steam plants, electric motors and hydraulic machinery D、diesel engines, steam plants and hydraulic machinery
A、any sailing vessel with propelling machinery B、any vessel propelled by machinery C、any sailing vessel with or without machinery for propelling D、any sailing vessel with propelling machinery not in use
A、A. hydraulic hatch cover B、B. hydraulic release unit C、C. hydraulic oil jack D、D. automatic hatch cover
A、A. We often maintain deck machinery. B、B. We often repair deck machinery. C、C. We often clean and paint deck. D、D. We often adjust deck machinery.
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