The effect of space velocity on catalyst was studied as well as concentration and temperature.
考察了空速、进料浓度、反应温度等因素对催化剂活性的影响。
The catalyst alkylation performance was studied under different temperature, space velocity and pressure.
在一定的温度、空速和压力的范围内，考察了催化剂的烷基化性能。
Though hurtling through space, the senses are rarely aware of the velocity.
虽然在太空的速度很快，但在看景色时几乎注意不到速度有这么大。
Though hurtling through space, the senses are rarely aware of the velocity.
虽然在太空的速度很快，但在看景色时几乎注意不到速度有这么大。
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