However, facts A, B, and C are never used again; they were instrumental to the argument because they allowed one to establish D, but once D is established, A, B, and C can be safely forgotten.

然而，A,B和C再也没有被使用到；他们只是辅助性的证明，因为它们被用来建立D，然而一旦D被建立起来后，A,B,C可以被毫无顾虑地忘掉。

youdao

The whole thing thus boils down to solving 5c"+d'=54 and c"d'=144, which means that c" is solution of x(54-5x)=144 or 5x2-54x+144=0.

所有的事情都归结于解方程组5c"+d'=54,c"d'=144,即表示c''是x(54-5x)=144 或 5x2-54x+144=0的解。

youdao

It was found that the tabs fixed on C-D nozzles also enhanced the jet mixing distinctly, although the boundary layers of the jets from C-D nozzles were greater than that from the convergent nozzle.

结果表明，对于收扩喷管，虽然其速度边界层厚度明显大于收敛喷管，但加装小突片结构也能够明显的强化射流的混合。

youdao

The D.C.Commission on the Arts and Humanities has asked him to create large paintings on the walls of buildings.

VOA: special.2010.03.19

So,you'd find Yale with interests in office buildings in New York, Washington D.C., Chicago,San Francisco,Los Angeles, some in secondary markets as well, but predominantly in large metropolitan downtown areas.

你会发现耶鲁占有股份的写字楼,分布纽约 华盛顿,芝加哥,旧金山,洛杉矶,二级市场也有一些,但绝大部分集中于大都市商业区

耶鲁公开课 - 金融市场课程节选

which is one of the few museums in D.C. that actually isn't free because it's not a national museum.

那是特区里少有的几个收费博物馆之一，因为它不是国家博物馆。

大都会艺术博物馆 - SpeakingMax英语口语达人

These narrators, most notable among them, for instance, are Ibn Ishaq (d. 761), Bukhari (d.870), Muslim (d. 875) and al-Baladhuri (d. c.892), provided the raw material for those who came later and sought to systematize the historical record and provide commentaries of their own on the earliest developments of Arab-Muslim history and Islamic civilization.

CENTERFORSECURITYPOLICY: Muslim-on-Muslim Violence

If any four atoms, let say, atoms A, B, C and D, would be selected to test the decay, atom A would have much lesser chance to respond to decay due to the existence of atoms B, C and D.

FORBES: Young Earth Creationists Whipsawed By IRS

It is the phenomenon whereby we assume that because people are good at doing A they will be good at doing B, C and D (or the reverse because they are bad at doing A they will be bad at doing B, C and D).

ECONOMIST: Idea