[单选题] The two basic types of fuel injection pumps use in the diesel engine are ______ an in-line type.

1、[主观题]【英译中】The burning of air-fuel mixture makes the pistons move up and down,then turn the crankshaft around.

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2、[主观题]【英译中】Fuel tank is usually made of sheet steel with rectangular or circular in shape and have a capacity for approximately 270 liters of fuel.

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3、[主观题]【英译中】The diesel engines are compression ignition engines.The diesel engine uses the heat of compression to ignite the fuel.

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4、[主观题]【英译中】As a mixture of water and antifreeze,coolant circulates through these water jackets,picking up heat and carrying it away.

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5、[主观题]【英译中】When the piston move to its highest position inside the cylinder,we can say it is at Top Dead Center(TDC).

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