(自行车)牙盘/链轮盘:安装在曲柄上的带齿圆盘,链条咬合其齿以传递踩踏动力;常与不同齿数的牙盘配合实现变速。(也有人用“前齿盘”泛指)
I replaced the chainring because the teeth were worn down.
我更换了牙盘,因为齿已经磨损了。
With a larger chainring, he could maintain a higher speed on flat roads, but climbing became harder.
换上更大的牙盘后,他在平路上能保持更高速度,但爬坡会更吃力。
/ˈtʃeɪnˌrɪŋ/
chainring 是由 chain(链条)+ ring(环、圆环)组合而成的复合词,字面意思是“链条咬合的环形齿盘”。该词在现代自行车与传动系统语境中固定化,用来指曲柄前方的带齿圆盘。