four valve engine 四气门发动机
four-valve si engine 四气门汽油机
four valve si engine 四气门发动机
four-valve gasoline engine 四气门汽油机
EFI four-valve petrol engine 电喷四气门汽油机
The cycle of operation of the four-stoke engine begins with the piston at TDC and the intake valve open.
四冲程发动机的工作循环是以活塞在上止点、进气门打开为开始的。
The effects of integrated and separated intake ports on cyclic variation of combustion pressure in a four-valve gasoline engine were analyzed with a CB-466 combustion analyzer on the engine test-bed.
在发动机试验台上，利用CB-466燃烧分析仪研究了整体式和分体式进气道对四气门汽油机燃烧压力循环变动的影响。
There are some different ways of arranging porting for the four-valve diesel engine, such as two helical intake ports, two tangential intake ports or one helical port and one tangential port etc.
四气门柴油机进气道可以选用不同类型的进气道进行组合，如二个螺旋进气道、二个切向进气道或一个切向进气道一个螺旋进气道等。
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