variation in pressure

• 压力的变化

variation in pressure的用法和样例：

例句

1. Electricity compensates for barometric pressure as well as system pressure variations.
   用电补偿大气压和系统压力的变化。
2. The additional integrated bar graph display with a trailing pointer function shows the trend in current working pressure directly.
   具有指针跟踪功能的辅助内置条线图显示屏可以直接显示出当前工作压力的变化趋势。