石碓 meaning in English
a treadle-operated tilt hammer for hulling rice
Examples
- In the early ming dynasty （ 1368 - 1644 ） , a highly - efficient water - powered device for milling grain was installed in tunxi county , anhui province
明代（公元1368 ? ? 1644年）初年，在安徽屯溪出现的一组综合性谷物加工机械。以流水冲击转轮带动石碓、石磨工作。