哪位高手帮忙翻译下汽车专业英语的文章（要专业的哦！不要在线翻译）
Thediameterofthecylinderiscalledtheenginebore.Displacementandcompressionratioaretwofr...
The diameter of the cylinder is called the engine bore.Displacement and compression ratio are two frequently used engine specification.Displacement indicates engine size.and compression ratio compares the total cylinder volume to compression chamber volume
The term"stoke"is used to describe the movement of the piston within the cylinder.The operating cycle may require either two or four stroke to complete. Most automobile engines operate on the four stroke cycle
This type of engine is also know as Otto cycle,after the name of its inventor, Nikolaus Otto,who first applied the principle in 1876.In the 4-stroke engine, four strokes of the piston in the cylinder are required to complete one full operating cycle. Each stroke is named after the action.It performs intake, compression,power, and exhaust in that order, shown in Fig.1-2
1.Intake stroke
The piston moves downward to the bottom dead center,a vacuum is created in the cylinder.The intake valve opens and air-fuel mixture comes into cylinder.To obtain the maximun filling of the cylinder the intake valve opens about 10' before t.d.c.giving 20'overlap. The inlet valve remains open until some 50'after b.d.c.to take advantage of mixture.
2.Compression stroke
The air-fuel mixture is compressed within the combustion chamber.While the pressure rise to about 1MP, depending on various factors including the compression ratio, throttle opening and engine speed.The spark plug is fired ignite the air-fule mixture prior to the piston being at the t.d.c..Note that both valves are closed.
3.Power stroke
The air-fuel mixture expands, which creates the power to force the piston downward.The exhaust valve opens near the bottom of the stroke.
4.Exhaust stroke
As the piston starts to move upward, the exhaust valve is opened.The piston moving up force the exhaust gases out of the cylinder.The intake valve usually opens just before the exhaust stroke.
This 4-stroke cycle is continuously repeated in every as long as the engine remains running. 展开
The term"stoke"is used to describe the movement of the piston within the cylinder.The operating cycle may require either two or four stroke to complete. Most automobile engines operate on the four stroke cycle
This type of engine is also know as Otto cycle,after the name of its inventor, Nikolaus Otto,who first applied the principle in 1876.In the 4-stroke engine, four strokes of the piston in the cylinder are required to complete one full operating cycle. Each stroke is named after the action.It performs intake, compression,power, and exhaust in that order, shown in Fig.1-2
1.Intake stroke
The piston moves downward to the bottom dead center,a vacuum is created in the cylinder.The intake valve opens and air-fuel mixture comes into cylinder.To obtain the maximun filling of the cylinder the intake valve opens about 10' before t.d.c.giving 20'overlap. The inlet valve remains open until some 50'after b.d.c.to take advantage of mixture.
2.Compression stroke
The air-fuel mixture is compressed within the combustion chamber.While the pressure rise to about 1MP, depending on various factors including the compression ratio, throttle opening and engine speed.The spark plug is fired ignite the air-fule mixture prior to the piston being at the t.d.c..Note that both valves are closed.
3.Power stroke
The air-fuel mixture expands, which creates the power to force the piston downward.The exhaust valve opens near the bottom of the stroke.
4.Exhaust stroke
As the piston starts to move upward, the exhaust valve is opened.The piston moving up force the exhaust gases out of the cylinder.The intake valve usually opens just before the exhaust stroke.
This 4-stroke cycle is continuously repeated in every as long as the engine remains running. 展开
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你自己识著翻译，在电脑上安装金山词霸，因为汽车方面的术语我不太懂，也不知道选择哪个单词比较好，所以爱莫能助啊!
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