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When inspecting piston rings through the ports of ...

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When inspecting piston rings through the ports of a two-stroke/cycle diesel engine, black areas on the sealing surfaces are the result of （）

发布日期：2021-03-22

A.insufficient lubrication

B.improper piston cooling

C.blow-by

D.overload operation

标签： inspecting piston rings ports two-stroke

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