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The exhaust valve is opened at about the same time () the air inlet ports are opened.

A、before

B、after

C、when

D、until

更多“The exhaust valve is opened at about the same time () the air inlet ports are opened.”相关的问题
第1题

A、the inlet valve is open  B、the exhaust valve is open  C、both valves are close  D、both valves are open  

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第2题

A、the inlet valve is open  B、the exhaust valve is open  C、both valves are closed  D、both valves are open  

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第3题

A、the beveled edges of the intake valves provide for serf-centering during seating  B、intake valves utilize stellite-coated valve seat inserts which reduce wear  C、the volume of air passing through intake valves is less than the volume of air passing through exhaust valves  D、intake valves are less affected to the corrosive action of exhaust gases  

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第4题

A、by an fuel valve  B、through an inlet valve  C、with an exhaust valve  D、from an outlet valve  

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第5题

A、cylinder exhaust valve  B、air starting valve  C、air inlet valve  D、cylinder relief valve  

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第6题

A、the indicating cock  B、the starting valve  C、air inlet valve  D、the exhaust valve  

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第7题

A、A.hold the valves open  B、B.keep the valves off their seats until the exhaust stroke is completed  C、C.close the valves  D、D.open inlet valves when the air injection cycle begins  

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第8题

A、valve loop  B、valve uniflow  C、valve overlap  D、valve grinding  

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第9题

A、A.exhaust valves  B、B.starting valves  C、C.fuel valves  D、D.the indicator cocks  

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第10题

A、a exhaust valve  B、a piston skirt  C、a piston crown  D、an air suction valve  

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