1. Usually a carbon footprint is calculated for the time period of a year. 通常情况下,碳足迹是以一年为一个时间段进行计算的。
2. Expression for the value of user input required calculation calculation formula, the program calculated. 表达式求值,用户输入需要计算的计算式,程序计算出来。
3. First contact stress and deformation of parts which have normal shapes and simple contacting status are calculated using Hertz formula and finite element method. 首先,运用了赫兹公式和有限元法对外形规则、接触状态简单的零件进行接触应力和接触变形计算。