With that gorgeous-looking, chunky chainring and the possibility of candy-colored belts, combined with an almost silent operation, make me want to try one out on my fixed-gear bike.
皮带轮外观精巧漂亮，皮带涂以糖果色，运转几乎听不到声响。 人们纷纷想在自己的自行车上试用。
2
The engagement theory of the gear rack mechanism can be used to study the silent chain mechanism.