在热火朝天的兴修水利运动中,在党的领导下,农民群众大搞技术革新,改革工具。他们干劲冲天,发挥了无穷无尽的智慧,克服了许多困难,创造和改进了各式各样的工具,给多快好省地大兴水利创造了极为有利的条件。这数以万计的工具创造与改进,都是符合科学原理的。杠杆原理什么是杠杆原理呢?让我们先从一杆秤说起。秤有一根秤杆,秤杆上有秤纽、秤钩(或秤盘)和一个 Under the leadership of the party, the peasant masses vigorously engaged in technological innovation and reformed their tools in the construction of the water conservancy movement. They worked their way up to the sky, played endless wisdom, overcame many difficulties, created and improved a variety of tools, and created extremely favorable conditions for the rapid development of water resources. The creation and improvement of these tens of thousands of tools are in line with scientific principles. The principle of leverage What is the principle of leverage? Let us start with a scale. The scale has a balance rod, and the scale has a balance scale, a scale hook (or weighing pan) and a