Scuffed cylinder liner wearing surfaces in a diesel engines can result from （）<br>A:chromium plating piston rings<br>B:knurling the piston skirt<br>C:extended maximum power operation<br>D:applying load to a cold diesel engine

Scuffed cylinder liner wearing surfaces in a diesel engines can result from （）
A:chromium plating piston rings
B:knurling the piston skirt
C:extended maximum power operation
D:applying load to a cold diesel engine

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