上积分 meaning in English

upper integral

Property of jacobi matrix and theorem of geometric integral transformation
矩阵的性质与几何体上积分变换定理
The integral on infinite interval is an indispensable part of the theory of integral
无穷区间上积分的讨论是积分理论中不可缺少的一部分。
Later on , stieltjes introduced a new integral to show the limit of analytic function sequence , and this became the outset of integral on general measure
稍后， stieltjes为了表示一个解析函数序列的极限引入了一种新的积分? ? stieltjes积分，成为研究一般测度上积分的开端。
The finite difference method and matlab / simulink are used to simulate the pressure transients accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines . a method using selector block in matlab simulink to solve the equations in spatial dimension is developed . the pressure transients under different conditions such as different initial flow rate , different viscosity and different initial gas bubble volume are simulated
采用有限差分及matlab / simulink仿真方法,提出了采用simulink中selector模块求解空间域上积分的方法,对低压液压管路有气泡和气穴产生的瞬态压力脉动过程进行了时间域和空间域上的求解,对不同起始流量、不同液压油粘度和不同初始气泡量等条件下的瞬态压力脉动过程进行了仿真研究。