1) The first differential relationship of goedesic line
大地线的一阶微分关系式
2) the invariance of differential form of first order
一阶微分的形式不变性
1.
Through the applications in the integration by substitution, finding the value of whole differential equation, differentiate and partial derivative or partial derivative of higher order for multivariate (one variable) function of functions, this paper discusses that the function of the invariance of differential form of first order should be not neglected in calculus.
通过在积分换元、微分方程求解、多(一)元复合函数求全微分、偏导数及高阶偏导数中的应用举例,论述了一阶微分的形式不变性在微积分学中的作用不应被忽略。
3) differential relationship
微分关系式
1.
Based on the theory of differential geometry and geodesy,the second order differential equation and the first differential relationship are derived on the regional earth ellipsoid in this paper.
应用微分几何和大地测量理论 ,提出并推证了在地球椭球面上的局部区域内以测地坐标为坐标参数的大地线二阶微分方程和一阶微分关系式 ,其间定义了在测地坐标系中大地线的方向角 ,并得出该方向角与大地方位角的关系式 。
4) differential relationship equation
微分关系式
1.
According to the steam-water distribution general matrix equation of thermal sy stem for the coal-fired power Unit, specific internal work equation, cycle heat absorption equation and the calculation formula of dynamoelectric standard coal consumption rate, the common differential relationship equation is deducte d for the first time.
根据火电机组热力系统汽水分布通用矩阵方程、比内功方程、循环吸热量方程及发电标准煤耗率的计算公式 ,首次导出了凝汽式火电机组发电标准煤耗率与辅助汽水流量的通用微分关系式 ,利用这一关系式 ,可以方便地计算辅助汽水流量的变化对发电标准煤耗率的影响 ,克服了用传统方法计算这一问题时的繁杂、易错的弊病。
5) pressure/fill differential relationship
压力/充装的微分关系(式)
6) first order variable coefficient linear non homogenous delay differential equation
一阶变系数线性非齐次时滞微分方程
补充资料：大地线
见椭球面大地测量学。
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