What does 2D mean in a car What is 2D in a car What does 2D do What is 2D

What is on a plane is two-dimensional. Two-dimensional, that is, left and right, up and down, there is no front and back.

Two-dimensional is a kind of flat technology, such as ordinary flat animation, called two-dimensional animation, referred to as two-dimensional. (Three-dimensional is three-dimensional). In mathematics and physics, where the first dimension is too simple and the third dimension is too complex, the two-dimensional "plain" just allows researchers to have enough space to develop their talents.

But 2D isn't just a virtual space on scratch paper, it's also valuable in reality.

Two-dimensional is a kind of flat technology, such as ordinary flat animation, called two-dimensional animation, referred to as two-dimensional. (Three-dimensional is three-dimensional). In the study of mathematics and physics, one dimension is too simple, while three dimensions are too complex, two-dimensional"Plains"Just enough space for researchers to use their talents.

But 2D isn't just a virtual space on scratch paper, it's also valuable in reality.

It is the secondary maintenance of the car. The secondary maintenance is carried out by the professional maintenance enterprise, and the content of the operation center is mainly inspected and adjusted in addition to the first-level maintenance operation, and the tires are dismantled and inspected, and the tires are transposed. Before the secondary maintenance, the detection and diagnosis and technical assessment should be carried out, and according to the results, the additional operations or minor repair items should be determined, and the secondary maintenance should be carried out together.

The interval of maintenance at all levels depends on the type of vehicle and operating conditions.

China's current car maintenance system is divided into routine maintenance, first-level maintenance, second-level maintenance, etc. In addition, there is seasonal maintenance and walk-in maintenance. Daily maintenance is the operation before leaving the car, during the driving, and after the car is collected, and the driver is responsible for the implementation, and the content of the operation center is cleaning, replenishment and safety inspection, which is a regular and necessary work to maintain the normal working condition of the vehicle.

Myths about car maintenance:

Oil addition: more than less.

In winter, the replacement and addition of car oil has become an indispensable maintenance content, and many car owners believe that only by filling up the engine oil can the car engine be better protected. In fact, crankshafts.

When the oil is insufficient, the bearings and journals will be poorly lubricated, which will aggravate the wear and even cause the burning of the shaft.

Accident. However, if there is too much oil, the engine will also fail, that is, when working, the crankshaft handle and the large end of the connecting rod will be violently agitated, which will increase the internal power loss of the engine, and will also increase the oil splashed on the cylinder wall, resulting in oil burning.

Fault. Too much oil can lead to increased carbon deposits in the combustion chamber and reduced engine power, which affects emissions.

When the owner checks or adds oil, it should be added according to the scale above the oil scale, the maximum oil level can not exceed the upper limit of the scale scale, and the minimum can not be lower than the lower limit of the scale scale.

Tire pressure detection: rather high than low.

Some car owners like to inflate their tires with high pressure, believing that this will both overload and save fuel. But in fact, this practice is not caries, too high tire pressure will reduce the contact surface between the tire and the ground, increase the wear of the tread, and reduce the braking effect when braking. Of course, too low tire pressure is not good, in addition to affecting driving safety and braking effect, it will also accelerate the wear of the tire shoulder and increase the fuel consumption of the vehicle.

External maintenance: The more waxing, the better.

In order to keep their cars looking beautiful for a long time, many car owners are accustomed to waxing their cars regularly.

It's true that waxing can make a car's paint look brighter, but it doesn't mean that frequent waxing will maintain the gloss of a car's paint.

According to industry insiders, the performance of various car waxes is different, and its role and effect are not the same.

It is the secondary maintenance of the car. In addition to the usual first-level maintenance work, it mainly inspects and adjusts safety parts such as steering knuckles, steering rocker arms, brake shoes, and suspensions that are easy to wear or deform after a certain period of use, and disassembles and inspects tires, carries out tire transposition, and checks and adjusts engine working conditions and exhaust pollution control devices.

Automobile secondary maintenance project 1: engine; Automotive Level 2 maintenance needs to check the condition of the engine at idle, medium and high speeds, as well as whether the cylinder pressure and vacuum level meet the standards. And whether the indicators of the engine after passing the three cleaning and three filtration operations meet the specifications.

The inspection of this item is more delicate than the level 1 maintenance.

Automobile secondary maintenance project two: clutch; This project is to test the convenience, smoothness and reliability of the clutch operation, to ensure that the clutch is convenient to use, no clothing length, and there is no oil leakage in the hydraulic system. Let the driver use the clutch better.

Automobile secondary maintenance project three: tires; Check whether the tire pressure is normal, and whether the tire texture is mixed with impurities such as gravel that are easy to hurt the tire, and detect whether the tire is aging and bubbling. It is also necessary to check whether the tires are rubbing against the chassis floor during normal operation.

Automobile secondary maintenance project four: vehicle inspection; This project is to inspect the overall condition of the car, such as cracks in the frame, loose screws, lighting activation, and abnormal noises when driving. If found, it is immediately checked, adjusted and eliminated.

Make sure the vehicle is running properly.

Inspect and adjust the steering knuckle, steering rocker arm, brake shoes, suspension and other safety components that are easy to wear or deform after a certain period of time, and disassemble and inspect the tires, carry out tire transposition, check and adjust the working condition of the engine and exhaust pollution control devices, etc., and the maintenance company is responsible for the vehicle maintenance operations.

Road transport vehicle maintenance is divided into: daily maintenance, first-level maintenance, and second-level maintenance.

The secondary maintenance is the vehicle maintenance operation carried out by the maintenance enterprise, and the central content is to inspect and adjust the safety components such as steering knuckles, steering rocker arms, brake shoes, and suspensions that are easy to wear or deform after a certain period of time, and disassemble and inspect the tires and carry out tire transposition.

Level 2 maintenance is carried out on a regular basis and, of course, at a certain cost.