1. Torque: Torque is the force that makes an object rotate.Engine torque refers to the torque output from the crankshaft end of the engine.Under the condition of fixed power, it is inversely proportional to the engine speed. The faster the speed, the smaller the torque, and vice versa. It reflects the load capacity of the car within a certain range.

　　2. Rotation speed: The international standard unit is rps (revolutions per second) or rpm (revolutions per minute), and it is also expressed as RPM (revolutions per minute, mainly adopted in Japan and Europe, and my country adopts international standards).The machine is marked with rpm because it is an international standard unit.

　　3. Power: The external output power of the engine, motor, and oil pump through the flywheel is called effective efficiency, expressed in Pe, and the unit is kW

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