X and Y in the equation are both unknowns.

等式中的X和Y都是未知数。

《牛津词典》

Tn is the next major factor in the equation.

Tn 是方程式中第二个主要因子。

youdao

But now you have a major new player in the equation.

但现在来了一个新的大玩家。

youdao

They must count everyone in the equation of power, he stressed,and allow the people to determine their own destiny.

VOA: standard.2009.10.19

And the solution to this equation looks like this where it is written in terms of a quantity called a wavefunction.

这个方程的解法是,看起来像是写成数学符号就是,波函数。

麻省理工公开课 - 固态化学导论课程节选

The second thing is, just as in the case of the violin string, the wave equation, as posed by Schrodinger, has a plurality of solutions.

第二，就那个小提琴弦而言，波动方程，被薛定谔所提出的，有许多解法。

麻省理工公开课 - 固态化学导论课程节选

The other factor in the equation is Belgrade, where interest in Kosovo's future has reawakened recently.

ECONOMIST: Kosovo's future

That means that, absent of something happening elsewhere in the equation, GDP is going to drop.

FORBES: Impossible Things And Our Economic Recovery

Meanwhile, Facebook also stays in the equation, since players will connect to FarmVille on MSN Games using Facebook Connect.

FORBES: Zynga's FarmVille Expands Beyond Facebook to MSN-ier Pastures