space velocity meaning in English
空间速度
空速
宇宙速度
Examples
- If widespread, such large space velocities could make a distribution typical of young stars mimic that of old stars .
如果广泛存在，这样大的空间速度，就可能使年青星的典型分布与老星分布相似。 - Effects of weight hour space velocity on the aromatization reaction of fcc gasoline
空速对催化汽油芳构化的影响 - The results showed that instability of operation temperature and increase in space velocity and pressure would cause deterioration of the activity stability , resulting in shorter service cycle
结果表明，操作温度的不平稳、空速及压力的提高均会造成催化剂活性稳定性变差，运转周期缩短。 - Strictly - controlled operating temperature , lower space velocity , atmospheric pressure and necessary pre - treatment of the feed oil containing much bnc would help lengthen the service cycle
在实际生产中，通过严格控制温度变化，采用低空速及常压，对含碱性氮化物较多的原料进行必要的预处理可以最大限度地延长催化剂运转周期。 - First in an 150 - 550 temperature range , the influence of oxygen concentration , space velocity and propene concentration on the no conversion was investigated and then also the macro kinetics of propene oxidization and no reduction
本文研究了在pt al _ 2o _ 3催化剂上进行的hc - scr反应，用以稀燃发动机尾气的治理。首先在150 - 550温度范围内考察了氧气浓度、空速及还原剂浓度对no转化的影响。