volumetric efficiency的用法和样例：
例句
- Valve timing is a major factor in achieving good volumetric efficiency.
定时阀是实现高容积效率的一个主要因素。 - Leakage within the hydraulic system will cause a sharp drop in volumetric efficiency, amounting to less than the required pressure, can not even work.
内漏会引起液压系统容积效率急剧下降，达不到所需要的工作压力，甚至不能进行工作。
