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。
2
When calculating oil and gas reserves by volumetric method, one factor affecting the computing accuracy is reservoir effective thickness.
用容积法计算油气储量时，影响储量计算精度的因素之一是储层有效厚度。
3
Heat transfer characteristic of ice storage tank of direct contact ice slurry system was studied, the influence factor of volumetric heat transfer coefficient in the ice slurry tank was analyzed.