随老化时间的延长和老化温度的升高,沥青的胶体不稳定指数逐渐增加。
With the prolonging of aging time and the going up of aging temperature, the unstable index of asphalt's gel increases gradually.
前言:文章对高锰酸盐指数加热时间、滴定温度、速度、滴定终点的控制进行了探讨。
This article discusses the acidic potassium permanganate method of permanganate index from the following aspects: heating time, titrate temperature and titrate speed, end point of titration.
对于文中研究的液滴,无量纲完全蒸发时间随烟气温度变化呈指数递减规律。
For the droplet considered, the life time of droplet reveals the index declining rule along the flue gas temperature varying.
在加热过程中,胶层粘度随温度和时间的变化可用二重指数方程描述。
The viscosity change of a glue line with temperature and time could be described qualitatively by a dual equation.
时间-温度指数可以综合反映热成熟度。
The thermal maturity is comprehensively reflected by time-temperature index.
在各种给定温度下,应力随时间均按负指数形式松弛,但应力松弛时间常数强烈地依赖于温度。
Stress relaxations are observed at various given temperatures. The variation of stress with time is exponential form and the relaxation time constant is strongly dependent on temperature.
加热速率随施加电压和固形物含量增大而加快,豆浆的温度与时间为指数关系。
The result showed that the electrical conductivity of soybean milk increased with temperature and solid content, and the heating rate increased with solid content and applied voltage.
发现供水状态变化后,地板表面温度随时间呈指数变化,升温期的稳定时间约为降温期的一半。
It is found that the floor surface temperature variety exponentially with time after the change of water condition, and the heat lag in the heating period is about half of that in cooling period.
采用经验法,以芳烃指数、裂解温度、停留时间为参数,建立烃类裂解烯烃产率分布模型。
Applying the method of mathematical statistics, the model for predicting olefin yield distribution of hydrocarbon cracking is obtained.
采用经验法,以芳烃指数、裂解温度、停留时间为参数,建立烃类裂解烯烃产率分布模型。
Applying the method of mathematical statistics, the model for predicting olefin yield distribution of hydrocarbon cracking is obtained.
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