采用物质平衡时间方程分析法求取单井控制储量。
And using material balance with time equation to calculate recoverable reservoir controlled by single well.
所以，当我们想要知道中子的变动率，那是时间方程，我们会写下这个表达式。
So if we wanna know the rate of change of neutrons as a function of time we will write this expression.
利用分支裂隙扩展建立断裂力学模型，可导出节理内聚力的一种具有封闭解的时间方程。
Fracture mechanical model is developed by utilizing subcritical crack growth, leading to an equation that has a closed solution for joint cohesion as a function of time.
对最危险滑动面随时间的变化进行研究，回归暴雨期间边坡稳定性系数—入渗时间方程序。
Studied on the change of stability factors with time and the equation between stability and time is linear regression for rainstorm.
通过分析理论解，从中得出稳态降深方程、稳态渗流速度方程、准稳态时间方程和理想井间距方程。
Equations of steady drawdown, seepage velocity, quasi steady time and ideal well distance were obtained through analytic seepage equation.
完整推导1PN度规形式下脉冲到达时间方程与脉冲星导航的观测方程，分析导航观测中的相对论效应，给出观测方程的级数展开形式。
The time of arrival equation of pulse and the timing equation of pulsar navigation in 1PN approximation is derived.
在波尔兹曼方程方程的流量是，表现的是，我不会每次都重复一遍，位置，能量，方向，时间。
And the flux in the Boltzmann Equation is represented as, and I will not repeat it every time, location, energy, direction and time.
在这个课题上工作了一段时间后，薛定谔得到了一个方程，一个简洁而美观的方程，而且从一个一般的视角看它似乎是正确的。
After working on this for some time, schrodinger was able to arrive at an equation, a very neat and beautiful equation, which seemed to be correct from a general point of view.
这是因为相同的方程，也描述了温度如何随时间变化的，抱歉…，我本应该更仔细的。
And, that's because exactly the same equation governs how temperature changes over time when you have, again, so, sorry I should have been actually more careful.
我们要求这个，方程的时间导数。
And so we're going to take the derivative versus time of this equation.
现在，如果你计算时间，会很接近终端速度，这并不简单，因为你们要解一个，令人厌恶的微分方程。
Now, if you want to calculate the time that it takes to get close to terminal speed, that is not an easy task, because you are going to end up with a nasty differential equation.
但我并不打算把解这几个方程，我觉得那会是浪费课堂时间，但那是三个未知式。
And I am not going to take the time to solve it because I think that is a waste of class time, but those are the three unknowns.
一旦你把纸从方程中拿开，花费变了，时间变了，准入障碍变了，风险变了。
As soon as you remove paper from the equation, the costs change, the timing changes, the barriers to entry change, the risk changes.
我们就不纠结这种情况了，这个方程告诉你，如果磁场随时间变化，它就会无中生有地产生电场。
But let's not bother.Again, what this equation tells you is that if the magnetic field changes over time then it creates, just out of nowhere, and electric field.
Kauffman断言道，"我们不可能超越时间去预测生物圈将会出现什么新的功能。 因此我们不知道该把什么变量--是肺或者翅膀还是其它--代入方程。
We cannot say ahead of time what novel functionalities will arise in the biosphere.
早在1929年，宇宙正在膨胀这一现象就已被天文学家哈勃所注意到，这让爱因斯坦不得不修改了他那项关于空间、时间和质量的著名方程式。
The discovery of the expansion of our Universe was already noticed by astronomer Hubble a long time ago in 1929, forcing Einstein to revise his famous equations about space, time and masses.
相对论方程序还预言，地球重力也能让时间变慢，或者让时间膨胀。
The equations of general relativity also predict that gravity similarly slows down, or dilates, time.
扩散方程将会告诉你，随着时间的流逝，这些东西如何扩散，最后布满整个杯子。
And, that equation will tell you how exactly over time this thing is going to spread out and start filling the entire glass.
同样的，第五个方程序，中的速度同样，会随时间改变，因为这是椭圆形轨道。
Also that velocity, v, in that equation number five will also change with time because it's an elliptical orbit.
我为此困惑过一段时间，最终我得以想到另一个方程，这个方程可以克服负概率的逻辑困难。
I puzzled over it for a time and eventually I was able to think of another equation which would get over the logical difficulties of the negative probabilities.
但是，物理学家知道，时间旅行不只是令人信服的秘密装置，而是爱因斯坦广义相对论方程的严肃预言。
But physicists know that time travel is more than just a compelling plot device - it's a serious prediction of Einstein's general relativity equations.
本文利用微分方程的数值解法对时间序列建模预测作了新的尝试。
In this paper, the numerical solution of differential equation is employed to establish the forecasting model of the time series.
伪抛物型方程中关于时间与空间变量的混合偏导项给差分格式的讨论带来了一定难度。
The mixed partial differential terms of time variables and space variables in the pseudo-parabolic equation make the discussion of the difference scheme more difficult.
根据时间的变化，x，is，，of，course，，changing，in，some，way,发生相应的变化，当你得到了,和时间的正确关系，for，x，as，a，function，of，time,你把它代入,这个微分方程，这个等式，就能得到满足。
x as a function of time, and when you have the correct solution x and you substitute that back into that differential equation, that equation will have to be satisfied.
抗蚜威在黄瓜及土壤中的残留量随着时间延长而递减，符合一级反应动力学方程。
As time went on, the residual contents of pirimicarb in the cucumber fruits and soil decreased, which accorded with the first-order kinetics equation.
本文利用微分方程的数值解法对时间序列建模预测作了新的尝试。
In this paper a new method of modeling forecasting is given for the time series by using the numerical solution of differential equation.
数值计算表明，这种方法可以降低方程的迭代次数约40%，并明显减少方程的求解时间。
Numerical results present that this method can decrease the number of iterative by 40% and reduce the computation time greatly.
如果有一个或多个参数，甚至连基础方程本身都以一种已知方式随时间而变化，则此系统就称为时变系统。
If one or more parameters, or the very form of an elemental equation, vary in a known fashion with time, the system is said to be time-varying.
如果有一个或多个参数，甚至连基础方程本身都以一种已知方式随时间而变化，则此系统就称为时变系统。
If one or more parameters, or the very form of an elemental equation, vary in a known fashion with time, the system is said to be time-varying.
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