pressure variation的用法和样例：
例句
- An essentially balanced single seat minimizes variation in delivery pressure resulting from varying inlet pressure.
一个基本平衡的单阀座最大限度减小进口压力变化对输出压力的影响。 - The characteristic of the swabbing induces the complexity of the well-bore pressure change during procedure.
开采非自喷井采用抽汲生产将导致井底压力变化十分复杂。
