ROT通常是基于以前的经验(比如在一段时间内观察到的平均值)或者更复杂公式的简化。
ROTs are typically based upon previous experience (like observed averages over time), or on simplifications of more complex formulas.
给出了描述稳定剂浓度与悬浮液分层时间之间函数关系的经验公式。
The functional relationship between the concentrations of the stabilizing agent and the separating time of the suspensions is given .
模拟试验系统首先测量了微径玻璃珠的排流时间，与应用准流体排流经验公式计算出的结果吻合，验证了试验系统的可用性。
The leaking time of glass pearls was measured through the system, and the measurement result coincides with that of theory computing, which shows the simulation test system is feasible.
作者认为选择间隔时间的半理论、半经验公式可能更科学、更接近实际。
The author believes that using half-theoretical and half-practical formulas to select delay interval is probably more scientific and more approaching the practice.
②由图像像素的累积计数、采集时间及定标系数确定像素的放射性浓度 ，其关系可以一经验公式表示。
The radioactive concentration of lesion pixel depended on the pixel counts, the acquisition time and CF, and the relationship was expressed with an empirical formula.
②由图像像素的累积计数、采集时间及定标系数确定像素的放射性浓度 ，其关系可以一经验公式表示。
The radioactive concentration of lesion pixel depended on the pixel counts, the acquisition time and CF, and the relationship was expressed with an empirical formula.
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