The allowable availability was selected as constraint, the maintenance cost was identified as optimization objective, the maintenance cycle was as optimal variable, the optimization model was set up.
以设备许用可用度为约束条件，以维修成本最低为目标，以维修周期为变量，建立设备维修优化模型。
2
No deductions 'new for old' shall be made from the cost of temporary repairs allowable as general average.
可作为共同海损的临时修理费用，不应作'以新换旧'的扣减。
3
The cost for the deposition of the waste depends also upon the volume of the storage cavities and the maximum allowable radioactive concentration of the waste.