一、改进后的制作方法:用长约十公尺,径约二公寸之横木一根,钉牢于高约六公尺(地下一.五公尺露四.五公尺)之木椿上,并用斜木撑一根撑着横木,再用长绳一根吊于横木末端之土面,以求横木无论在风雨之情况下,均很稳定。横木末端装一铁滑轮,水面上制一长约一公尺宽约四公寸,重约十二市斤之 First, the improved production methods: with a length of about 10 meters, diameter of about two inches of a horizontal bar, nailing at about 6 meters high (underground one five meters exposed four five meters) , And with a bracing brace propped a bar, and then use a long rope hanging at the end of the bar at the end of the earth, in order to bar no matter in case of wind and rain, are very stable. At the end of the bar fitted with an iron pulley, the water system of a length of about one meter width of four inches, weighing about twelve catties