A、Cast iron
B、Cast steel
C、Forged steel
D、Aluminum
更多“（） pistons have low inertia and high coefficient of thermal expansion.”相关的问题
A、a low load on that cylinder B、sluggish piston ring action C、excessive piston crown cooling D、excessive clearance of piston pin
A、Low compression pressure and high exhaust temperature B、Low firing pressure and high exhaust temperature C、Low compression pressure and low exhaust temperature D、Low firing pressure and low exhaust temperature
A、The medium speed 4-stroke trunk piston engine B、The low speed 2-stroke crosshead engine C、The medium speed 2-stroke crosshead engine D、The low speed 4-stroke trunk piston engine
A、worn or broken cylinder liner sealing rings B、high cooling water temperature C、worn or broken piston rings D、low fuel oil pressure
A、decreased piston to cylinder head clearance B、increased exhaust system back pressure C、early fuel injection timing D、low scavenge air temperature
A、have lows lower than normal and highs higher than normal B、have lows higher than normal and highs lower than normal C、are unpredictable D、occur in the spring of the year
A、low loading of that cylinder B、faulty combustion in that cylinder C、sluggish piston ring action D、excessive piston cooling
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