1) mean variation
平均自差
2) mean range
平均距离;平均射程;平均自由程;平均极差;平均潮差
3) mean range
平均差值平均差
4) mean deviation
平均差;平均偏差
5) average deviation
平均偏差
1.
In this paper,we calculate average deviations and give two kinds of estimate of standard deviation for the normal population.
求出了正态分布的平均偏差,并由此给出了正态总体标准差的两种新估计。
6) mean temperature difference
平均温差
1.
Formulae for calculating the mean temperature difference of rubber to cooling medium in reclaimator and heat transfer coefficient of system have been derived from theory.
从理论上推导出脱硫挤出机中胶料与冷却介质的平均温差及系统的传热系数的计算公式，并结合准数关系式及实验对传热能力和胶料与机筒内壁的对流传热系数进行了计算。
2.
This paper, according to heat transfer basic equation, deduces overall heat transfer coefficients in the transmit heating tube of the pure counterflow arrangement, axial temperature profile of the fluid along the length of transmit heating tube, simulates logarithmic mean temperature difference in a double tube and the effective overall heat transfer coefficient, wi.
本文根据传热基本方程推导纯逆流传热套管的总传热系数,沿传热管长度的流体轴向温度分布,模拟二重套管的对数平均温差和有效总传热系数以便于工程设计计算。
3.
The logarithmic mean temperature difference and the integral mean temperature difference are analyzed in the optimum design of heat exchanger,the proposed approximate equations of logarithmic mean temperature difference in the literatures are discussed.
分析比较了在换热器的优化设计中,当流体的比热或传热系数随温度变化时的对数平均温差(LMTD)和积分平均温差计算方法;同时对有关文献中已提出的近似计算方法进行了讨论,指出 Chen JJJ 提出的近似公式最适用于换热器的优化设计。
补充资料：平均差
平均差是各单位标志值与平均数的离差的绝对值的算术平均数。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条