单词	俞树酸--二十二酸
释义	二十二酸；俞树酸behenic acid
随便看	rack and pinion hoist rack-and-pinion jack rack and pinion motion rack and pinion press rack and pinion railway rack-and-pinion railway rack and pinion rotation mechanism rack-and-pinion steering rack and pinion steering gear rack-and-pinion steering gear rack and pinion steering gear with central output rack and pinion steering gear with lateral one-end output rack and pinion steering gear with lateral two-end output rack and ruin rack back rack bar rack, bar rack block rack bracket rack brains rack car rack configuration rack construction rack container rack control