用网点板求算面积,既不需要复杂的仪器,也不用高深的知识,使用方便,计算简单,深受外业人员欢迎。至今为止,该法仍然是外业工作中求算面积之主要方法。但由于该法未能给出测量误差,故只能使用“试验比较法”来确定间距不同的网点板哪一种更接近真值。一般来说,网 Calculate the area with the board, neither the need for sophisticated equipment, nor advanced knowledge, easy to use, simple calculation, welcomed by the field staff. So far, the law is still the main method of calculating the area in field work. However, since this method fails to give a measurement error, only the “test comparison method” can be used to determine which one of the halftone plates with different pitches is closer to true value. In general, the net