operating pressure cycles

• 操作压力循环

operating pressure cycles的用法和样例：

例句

1. There is a lag-effect in permeability change with pressure.
   渗透率随压力循环升降存在滞后效应。
2. Sealing effectiveness is thus unaffected by high temperature relaxation of materials and pressure cycles.
   因此密封效果不会因为材料的高温松弛和压力循环而受影响。