(1)麻绳与竹绳的比较:六丈麻绳每根一般需麻十六斤,每斤麻按二斤半小米计算,每根合米四十斤。如用六丈长的竹绳重八斤,需米二十二斤,这样每根绳可少米十八斤,同时竹绳的效力比麻绳的效力至少高一倍。(2)大蒲(?)与竹绳的比较:六丈长的大蒲绳,每根 (1) Comparison of hemp rope and bamboo rope: Six ropes each generally need to hemp sixteen pounds per kilogram of linen by two pounds of semi-millet calculated forty pounds per meter. As long as six feet of bamboo rope weighs eight pounds, twenty meters to be twenty meters, so that each rope can be less than 18 pounds, while the effectiveness of bamboo rope than the rope at least twice as high. (2) Big Po (?) Comparison with the bamboo rope: six feet long large Pu rope, each