A mounting hole for arranging the high strength friction grip bolt is arranged at the top of the rectangle steel pipe column.

所述的矩形钢管柱的上部开有用于安装高强螺栓的安装孔。

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They provide friction, so the vehicle can grip the road, but some of the power supplied to the tyres is lost as heat.

汽车的抓地力正是因为轮胎的摩擦力提供的。但供给轮胎的能量一部分要消耗在生成的热量。

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Winter, tire easily aging, lower coefficient of friction with the road surface, the situation appears unstable grip.

冬季来临，轮胎容易老化，与路面的摩擦系数降低，出现抓地不稳的状况。

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Sticking with tradition, the device's back is an all-Kevlar affair and it feels great, conferring just the perfect amount of friction and grip so you won't have to worry about accidental drops.

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That lack of friction, combined with extraordinary sideways grip, means an iceboat can sail six times the speed of the wind.

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But on a high friction surface like clay, the ball will grip more and change the trajectory of the ball quite significantly.

BBC: SPORT | Tennis | Rules and Equipment | On the rebound