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The function of the surface balance: the machine is better than the detection of metal objects and not interference.
Early pneumatic tyre, use is made of coated with rubber canvas when tire body, because the canvas ordinate and horizontal lines cross each other, due to the deformation of the tire when walking, lead to rub against each other, in this way, the line is easy to be ground breaking, the tires can only run 200-300 km. In 1903, Mr. J. f. palmer invented the twill textile, which led to the development of cross - layer tires, making the tyre life a big step forward. Because the tire of the skew fork will no longer cause friction because of the tread of the tyre, the cord will not be easily worn out, so the life span will be considerably longer. In 1930, Michelin made the first tyre without a tyre. The world famous meridian tire was invented in 1946. Therefore, the development of the tire has been a long journey, in this long night, I do not know how many generations have paid hard labor and excellent wisdom
To learn more about electric motors, read the following articles.
A word of advice bad cyclists, when approaching a bus which has just stopped in a bus stop, good sense should dictate to you that you just either pass riding on the bus before it opens its doors to allow passengers offload, or, you stop to let passengers off. Either way, don't just roll by and risk injuring yourself or others.
With an invincible team, the team's ability to draw on each other's strengths and collaborate with each other can create a good team, so it is the "three cobblers who have the best". In a team, each member has their own strengths and weaknesses. As a member of the team should be actively looking for team members' strengths and positive qualities, if each member of the team, have the initiative to find the positive qualities of other members, the team cooperation will be very smooth, will improve work efficiency. Team spirit highest state "do not abandon, do not give up".
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