地质院校的同学,野外和室内的地质工作者们,在学习和工作中都需要进行一些简单公式的计算,如计算岩層的厚度、深度和真假倾角等。这些计算是比较简单的,可以用笔算或图解法得出此较正确的結果。过去,许多地质工作者为了节省时间,曾编制过各式各样的曲线(或直线)图和数字表来代替计算。 Geological college students, field and indoor geologists need to do some simple formulas in their study and work, such as calculating the thickness, depth, true and false rock formation. These calculations are relatively simple, you can use pen calculations or graphic method to draw this more correct results. In the past, in order to save time, many geologists have compiled a variety of curves (or lines) and digital tables instead of calculations.