A continuity equation can be defined in everyday life. For example, if the continuity equation defines the number of people alive, then the source to be accounted in this case is the number of births and the sink to be accounted for is the number of deaths. The representation of any cont...
磁石吸铁的特性很早就被发现,我国古籍早有记载,那时人称“磁石”为“慈石”。《吕氏春秋》即有“慈招铁，或引之也”的说法。古人把磁石吸引铁看作慈母对子女的吸引，并认为“石是铁的母亲，但石有慈和不慈两种，慈爱的石头能吸引它的子女，不慈爱的就不能吸引了。”这段文字着重阐明的是（）。
aThe continuity equation in a transient two-dimensional flow is given by 正在翻译,请等待...[translate] a二环北路 Two link north roads[translate] a教授走进教堂时,我们正兴致勃勃地讨论中东的形势 When professor enters the church, we are discussing Middle East's situation full of enthusiasm[translate...
Derive the equation of the continuity? True or false? Proportionality is a special case of linearity. At what speeds is Bernoulli's equation valid? What is the equation: x = x_0+v_{0t}+\frac{1}{2}at^2 used for (physics)?
a连续性方程 Equation of continuity[translate] a我看到翻译中文的意思是你想在这里跟这女孩谈话? I saw translation Chinese the meaning is you wants to converse in here with this girl?[translate] a我离开家乡已经20年了 I left the hometown already 20 years[translate] ...
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By hypothesis, we then have an equation of the form for all and some functions , and our task is then to produce a function for which for all . Comparing the two equations, the task would be easy if we could find an for which for all . However there is an obstruction to this:...