The solar equation table of the Dayan Calendar is a mathematical table of equally quartic difference, and it reflects Yi Xing's profound understanding about the solar motion.
《大衍历》日躔表是一份四次差分相等的数表，反映一行对太阳运动复杂性的深刻认识。
Technological improvements are needed so that wind, solar and hydrogen can be more feasible parts of the energy equation.
需要改进技术，提高风能、太阳能和氢能在能源等式中的可行性。
Computer calculations have been made on the dimensional solution to the anisotropic diffusion convection equation for solar cosmic rays propagating in an uniform and unbounded interplanetary medium.
应用电子计算机计算了太阳宇宙线在均匀并无限的行星际介质中传播的各向异性扩散对流方程的量纲分析解。
The equation of a spacecraft with solar arrays are obtained by using the conservation principle of momentum .
利用动量矩守恒原理导出带太阳阵航天器的动力方程，指出了系统的非完整约束性质。
Based on the equation of silicon solar cell current intensity, the theoretic expression of silicon solar cell load resistance at maximum power point is deduced.
从实际的晶体硅太阳电池电路基本方程出发，推导出晶体硅太阳电池最大功率下负载的函数表达。
The effect of wind speed on the top heat loss coefficient of flat plate solar collector has been analyzed, the modified coefficient for wind speed effect and its empirical equation has been derived.
本文分析了风速对平板型太阳集热器顶部热损失系数的影响，导出了风速影响修正系数及经验公式。
An analytic model is developed by using solar radiation transfer equation to study shortwave radiation parameters of regular cloud array.
本文使用短波辐射传输方程建立分析模式研究规则排列块状云阵的短波辐射参数。
In this paper based on the basic equation of flat-plate solar collectors, a new unsteady state method, called the Rilter- least Square method, is presented.
本文基于平板集热器的基本方程，讨论了在非稳态条件下测试集热器稳态热效率的滤波方法。
By transformation, the differential equation group of couple motions of solar wings and the central rigid body of the spacecraft is obtained.
通过变换，给出太阳帆板、航天器中心刚体耦合运动微分方程组。
The theoretical equation system of structural analysis on solar sail is given in this paper.
本文推导建立了太阳帆结构分析的理论方程组；
The solution of discrete equation was obtained by the method of SIP with and without the effects of earth radiation on temperature distribution of the solar PV array were compared.
采用SIP算法，对离散方程进行了求解。比较了考虑和不考虑地球红外辐射对电池阵温度分布的影响。
The time constant and instantaneous efficiency of the feed-tube solar air heater were tested on the solar irradiance. The equation for instantaneous efficiency was obtained at the different flow rate.
在自然辐照条件下测试了内插管式空气集热器的时间常数、瞬态效率，得到了不同流量下的瞬态效率方程。
Amongst these, one of the most important problem is to solve the boundary value problem for the solar force-free magnetic field equation.
这其中最重要的一个问题就是通过数值方法求解太阳无力磁场方程的边值问题。
By means of the component coefficient equation and the updated data of abundances of the solar system, we calculate the element abundances of 64 poor-metal stars.
利用分量系数公式并结合太阳系元素丰度的最新数据，计算了6 4颗贫金属星的中子俘获元素丰度。
Analyzing the heat balance of the water-heating process of solar cookers, this paper presents the differential equation of the energy transfer during the transient working condition of solar cookers.
本文导出了太阳灶工作时的非稳态能量传输微分方程序，其解展示了太阳灶对不同辐射输入的动态响应。
The modified P-M equation is suggested to calculate the reference crop evapotranspiration in solar-heated greenhouse.
建议在日光温室里使用修正后的P - M公式计算参考作物的蒸发蒸腾量。
The modified P-M equation is suggested to calculate the reference crop evapotranspiration in solar-heated greenhouse.
建议在日光温室里使用修正后的P - M公式计算参考作物的蒸发蒸腾量。
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