论文部分内容阅读
现在各地正在大量推广双轮双铧犁,在比较效率计算面积上是一件繁杂的工作,为了节省时间计算方便起见,制订了计算面积常用表,只知道耕地次数和地段长度就可查出面积(亩)数量。制表的根据是,以下列公式求出(a×b×c)/d=e.a 等于长度 b 等于耕地次数,c 等于每次耕地宽度(1.2尺),d 等于每亩方尺数(6,000方尺),e 等于所求面积亩。如长为1公
At present, a large number of double-wheel and double-plow plows are being popularized all over the country. This is a complicated task in terms of comparatively efficient area calculation. In order to save time and calculate conveniently, a table for calculating the area has been formulated. Only the times and the length of the cultivated land can be found. (Mu) quantity. The tabulation is based on the following formula: (a × b × c) / d = ea is equal to the length b is equal to the number of arable land, c is equal to the width of each arable land (1.2 feet), d is equal to 6,000 square feet per mu , e is equal to the required area of mu. If the length of 1 public