地弓:丈量地亩的器具,用竹板制成,形状像弓,两端的距离是5尺,也叫步弓。旧时丈量地亩的计算单位,1弓等于5尺。弓是射箭和发弹丸的器具,能打弹丸的弓是弧形有很大弹性的竹板或俗称竹劈子制成,一头有盛弹丸的弹仓,压缩弓板后猛然放手借弓背的弹力把弹丸射出,又 To bow: measuring acres of utensils, made of bamboo, shaped like a bow, the distance between the ends is 5 feet, also known as walking bow. The old unit of measurement of acres, a bow is equal to 5 feet. A bow is an archery and a projectile weapon. A bow that can play a projectile is an arc-shaped bamboo plate or a bamboo box commonly known as bamboo splitter. Elastic shot of the projectile, again