20公斤电子秤开发程序，以C51为基础，准确称重-20 kg electronic scales develop procedures to C51-based, accurately weighed

vasp，功能强大的第一性原理计算软件，请注意版权(The Vienna Ab initio Simulation Package (VASP) is a computer program for atomic scale materials modelling, e.g. electronic structure calculations and quantum-mechanical molecular dynamics, from first principles.)