庄创下了54.64秒的纪录。Zhuang claimed the record in 54.64 seconds.“ 进来, 丹斯先生.”他摆着架子非常庄重地说.'Come in, Mr Dance,'says he, very stately and condescending.有服装店老板摩根洛,还有绸缎庄老板吉勃生. ”Morgenroth the clothier and Gibson the dry goo...
活塞上涂了一层石墨以减小摩擦力。The pistons are graphite-coated to reduce friction.润滑油能减小摩擦力.Oil can reduce friction.这种自行车的设计成功地减少了风的阻力和摩擦力。The design of the bicycle has managed to reduce the effects of wind resistance and drag....