The General Technical Conditions for Children's Furniture was officially implemented for nearly a month. Although most children's furniture has been changed under the new regulations, there are still some furniture that do not meet the requirements of the new regulations. The new national standard imposes stricter requirements on the limits of harmful substances in children's furniture surface coatings, textile fabrics, leather and plastics. However, when parents buy furniture, it is impossible to personally check the specific content and verify whether the product has passed the national standard. What should we do? In this regard, the staff of the Municipal Consumers Association said that in the case that consumers are not familiar with the new national standard, they can test it by touching and seeing the four questions. Touch and touch the surface of the furniture for burrs or edges; secondly, look at the furniture cabinet for ventilation holes, whether the handles, hinges, etc. are secure and cushioned, and there are no locking devices in the folded position. Three smells, smelling whether the furniture has a pungent smell, etc.; four questions, ask the seller whether there is a quality inspection report and product manual.
Tractor, Head Tow Truck, Front drive capability called the front tractor, rear no traction drive capability of the car called the trailer, tractor trailer is pulled along. Tractor and trailer is connected in two ways: The first is the front half of the trailer after the tractor ride in the section above the saddle traction, tractor trailer behind the bridge to withstand the weight of the part, which is the tractor; second species is the front end of the trailer attached to the rear end of the tractor, the tractor only pull forward, dragging the trailer to go, but do not bear the weight of the trailer down, which is all linked.
Tractor, Head Tow Truck principle
Tractor, Head Tow Truck Traction Control System Traction Control System, referred to as TCS, also known as ASR or TRC. Its role is to make the car under various traveling conditions can get the best traction. Traction control system control device is a computer, the computer detects the use of four wheel speed and steering angle of the steering wheel when the car is accelerating, if it detects that the drive wheel and non-driving wheel speed difference is too large, the computer immediately determine the driving force is too large issuing a command signal to reduce the amount of oil the engine, reducing the driving force, thereby reducing the driving wheel slip rate. Computer control through the steering wheel steering angle sensor driver intent, then use the left and right wheel speed sensor detects the left and right wheel speed difference; in order to determine whether the degree of steering the car and the driver's steering intention of the same. If the car detects understeer (or oversteer), the computer immediately determine the driving force of the drive wheel is too large, it issued a directive to reduce the driving force, in order to achieve the driver's steering intention.
Tractor, Head Tow Truck Traction control system to prevent the vehicle driving on snow and other slippery surfaces the driving wheel idling, the vehicle can smoothly start and accelerate. Especially in snow or muddy road, traction control system can ensure the smooth acceleration, to prevent the vehicle wheel slip occurs due to sliding or drift.
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Tractor, Head Tow Truck