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Is it called a car without wheels? According to the authoritative statement of "Cihai": "A car is a trackless vehicle that can be driven by itself and is mainly used for transportation.
Originally called 'automatic car', it is referred to as a car because it is mostly equipped with gasoline engines." The Modern Chinese Dictionary explains that "a car is a vehicle powered by an internal combustion engine, mainly on a highway or road, usually with four or more rubber tires." Used to carry people or goods.
But this is a lack of rigor in defining a car. A motorcycle is also self-propelled, trackless, and uses a gasoline engine; Second, tractors also use internal combustion engines, trackless, and have four or more wheels; Third, the steam locomotive in the past used an external combustion engine; Fourth, today's cars can also use natural gas, coal gas, methanol, etc. as fuel, not to mention solar cars, electric vehicles, etc. Therefore, there are certain limitations in the current interpretation of automobiles, and it is necessary to make a statement on this to reflect the characteristics of automobiles more scientifically.
The definition of the automobile must take into account the following factors: First, the emergence and development of the automobile. The emergence and development of automobiles has gone through a history of more than 200 years, and automobiles in different periods have different structural characteristics, and the types and uses of automobiles are also changing with each passing day; Second, based on the original intent of the car.
Automobile originated from the West, and should be defined based on the original meaning of Western and combined with the modern sense of the automobile. The "automobile" in English is composed of "auto" and "mobif will move", which is the origin of "automobile car", which means that it can move itself, that is, an automatic car; Thirdly, there is a difference between the car and other similar machinery. In the definition of a car, all the characteristics of similar machinery should not be fully covered.
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That day, I drove in a traffic jam on the road for half an hour, and I took a few groups of cars with my mobile phone in boredom. They've been running with me silently for more than half a year, hehe.
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Water Turbine The wheel of the motor windmill.
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It's really better to compare the four-wheeled ones, because the stability is better, and the two-wheeled ones will drift and can't drive fast.
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To discuss the ultimate speed, the comparison between the two is still 4 wheels.
Haven't all four-wheeled cars with speeds of more than 1,000 kilometers per hour been created?
Motorcycles, the fastest is hundreds of kilometers.
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In no case, four, of course.
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It's about the engine. It has nothing to do with the number of wheels.
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It depends on whether the car has gas or not.
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The plane is only three wheels... Who's running fast ...
Whether you run fast or not is related to horsepower.
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This should be a brain teaser.
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Do you think it's a brain teaser or something, do you say a two-legged animal runs fast or a four-legged animal runs fast?
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It depends on what kind of car you are.
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It depends on what kind of engine it is, the rocket doesn't even have a wheel.
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Depending on what path you take, it's different.
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Which one do you say is faster, a car or a motorcycle!
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It should be to reduce the pressure on the ground, the force area is increased, and the pressure remains the same.
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Because it has a large load capacity and fewer wheels, the pressure on each wheel is too high. The pressure of the tires is standard, and it is not easy to increase it again. Therefore, in order to carry a large weight, the only way to do so is to increase the wheels.
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In this way, the handlebar of the four wheels is divided into four parts, and the force of gravity acts on the wheels.
The truck is equipped with the right number of wheels according to its maximum load capacity.
Therefore, the larger the maximum load capacity of a truck, the more wheels it has.
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Feel the words. 1 Because the items are heavy and evenly stressed, 2 because there are many items and the body is more stable.
3 Because the cargo is connected to the body, the tires cannot suddenly burst tires, if not much. It's easy to scratch. Then if you throw it out later, it's cool.
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Reduce the force on each wheel, and the load of a single wheel is limited; Reduce the pressure on the road surface; The load-bearing capacity per unit area of the pavement is also limited.
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The average non-counterload is conducive to smooth operation and safety.
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To put it simply, wheels can carry a lot of weight!
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A lot of new Regal is like this, change to other brake pads When braking, it is to use brake pad friction, and the brake pads will definitely lose powder, or how the brake pads become thinner It is normal for brakes to have powder,
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Normal brake powder can be washed off when washing the car. Depending on what you said, the asphalt may be sticky, and it will be fine to use an asphalt remover.
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If your motor is powerful, then at the same motor speed, the bigger the wheel, the faster you run, because the same lap, the circumference of the person is long, that is, the stroke is long.
However, it will increase the load on the motor and controller, and the power consumption will be fast! Because energy is conserved.
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This depends on the speed of the wheels, of course, at the same speed, the big wheels will be faster.
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Not necessarily, depending on the size of the power.
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There is a slope buffer. Press one wheel up, and then put the center of gravity and direction well, and you're good to go.
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You need to use an inclined plane to get the car up sideways, and then run, those cars that run sideways are modified, and the side of the car is very light, and people can lift it. Then the shock absorber of the car should be good.
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You need to get the car sideways with the help of an inclined plane and then run.
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Safety, safety, how good it is for you to open in one round.
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You need someone to help you with a co-pilot, right?
It's up to you to keep training, and the record is made!
Usain Bolt runs 9.30 seconds in the 100 meters when he usually trains
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