Compared to, say, a wooden floor, ice has much less friction.
对比起木地板来说，冰面的摩擦力要小得多。
The advantage of rolling bearing is that they cause less friction.
滚动轴承的优点是它产生的摩擦力较小。
Thee efficiency of the machine is higher because there is less friction.
由于摩擦力较小，这台机器的效率更高了。
Thee efficiency of the machine is higher because there is less friction.
由于摩擦力较小，这台机器的效率更高了。
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