The interesting analysis is in changed behavior over some other variable like loops over an operation, load placed on the system, etc.
有意义的分析是随其他变量而变化的行为，这些变量例如有沿着一个操作的循环，对系统所施加的负荷等等。
2
Wind load is a main variable in OCS design, its right selection is very important for safety operation of OCS and economic efficiency of the system.
风荷载是接触网设计中主要的可变荷载，风速取值的正确与否对接触网的运行安全及系统的经济性至关重要。
3
According to the load of air conditioning and the performance of centrifugal and absorption chiller the feasibility of variable chilled water operation is discussed.