Constanty康斯坦蒂constantadj.不变的；经常的n.常数；恒量constant-area mixing等面积混合constant milling power恒铣削功率constant-gain region恒定增益区constant volume blower定容式鼓风机constant-rate filter恒速滤池constant pressure rail恒压网络constant speed rolling恒速轧制constant standard cost[经] 固定标准成本constant flexible test等挠曲试验constant phase surface等相位面

1. Your impatient self clearly suffers from a similar fixed cost of carrying out subtraction.
   你身上那个急躁的自我，显然在实施减法时承受着类似的固定成本。
2. We may classify costs as variable cost and fixed cost for the purpose of planning and control.
   为了计划和控制，我们可以把成本划分为固定成本和变动成本。