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。
The task executes when it receives business items A and B, or C and D, or B and C as inputs.
任务在接收到业务项A和B，或C 和D，或B 和 C作为输入时，该任务将执行。
D c: \. This should result in a directory called c: \ eclipse with the PDT files in it.
这应该会建立一个称为c： \eclipse的目录，其中包含PDT文件。
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。
We used to weld pipes with direct current (D. c) so are welder (ac A. C. welder).
我们总是用直流(交流)电弧焊机焊收受子。
The C. D. C. says Guinea worm no longer strikes in Asia.
疾病预防控制中心称在亚洲麦地那龙线虫病已经销声匿迹了。
It is obvious th at A. C. motors are superior to D. C. motors in many appli cations.
显然，交流电机在许多应用场合比直流电机优越。
But she also said C. D. C. scientists are preparing for possible cases of chikungunya in the United States.
但是她也表示，疾控中心的科学家们正在为美国可能出现的基孔肯雅病例做准备。
We used to weld pipes with direct current(D. C)are welder(alternating current A. C. welder).
我们老是用直淌（交换）电弧焊机焊接收子。
We used to weld pipes with direct current (D. c) are welder (alternating current A. C. welder).
我们老是用直源(交换)电弧焊机焊接收子。
The C. D. C. decided to release its results simultaneously.
疾控中心决定同时发布它的结果。
C. D. C. officials say people should put on sunscreen before they leave home, even on cloudy or cool days.
美国疾病控制防治中心官员们说：不论是阴天也不论是冷天，人们在离开家的时候都要使用防晒霜。
Carbonate compensation depth (C. C. D.) and lysocline are two important boundaries in oceanography.
碳酸盐补偿深度(C.C.D)及溶跃面是海洋学中两个重要界线。
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。
Roman poet known for his explorations of love, especially the Art of Love(c. 1 b. c. ) and Metamorphoses(c. a. d. 8).
奥维德罗马诗人，以其对爱的研究，尤其是爱的艺术（公元前1年）和变形记（公元8年）而闻名。
PEF during the study period was significantly higher in Group C than that in Group D, and symptom score was significantly less in Group C than that in Group D.
治疗期间合用组最高呼气流速（PEF）显著高于单用组，而症状计分则少于单用组。
It's a very practical attempt adopting wholly new control method change the special power afforded by the A. C. arc welder to the controlled D. C. power required in automobile maintenance.
采用一种全新的控制方法，将交流弧焊器所提供的特种电源转换成汽车修理所需的可控直流电源，是一种具有实用价值的尝试。
The paper presents the circuit structure type of the D. C. inductor in high power thyristor exciting system and the role of the D. C. inductor in the exciting current self-regulation control system.
本文论述了直流互感器在大功率晶闸管励磁系统中线路结构形式以及在激磁电流自动调节控制系统中所起的作用。
Study on its A. C. and D. C. characteristics was carried out and the results show that it has high ionic A. C. conductivity and lower ionic shifting activation energy at room temperature.
对其交、直流电性能进行了测量，结果表明铝蒙脱石快离子导体在室温下具有较高的交流电导率和较低的离子迁移活化能。
D. C. and A. C. characteristics of non-ideal operational amplifiers are examined from a general viewpoint, and a set of useful expressions and conclusive results are obtained.
本文从普遍性的意义上讨论了非理想运算放大器的交、直流性能，给出了一系列有用的公式和结论。
Wu J. g, C. D. Liu, Y. L. Ren, G. H. Yang and C. H. Shi, Rapid test method of rice chalkiness based on computer vision system.
吴建国、刘长东、任玉玲、杨国花和石春海，基于计算机视觉的稻米垩白指标快速测定方法研究。
David Percival said that the purpose of this visit was to gain deep understanding of C&D Wines and C&D Co. , Ltd so as to explore cooperation opportunities.
庞大维表示，此次来厦访问的主要目的，是希望能够对建发酒业、建发集团有更深入的了解，以此寻求双方的合作契机。
The progress of hard anodizing investigation employing A. C. superimposed on D. C. , pulse current and alternating cu…
着重评述了交直流叠加，脉冲电流和交流电源在硬质阳极氧化研究中的进展情况。
Doctor Terry Pechacek at the C. D. C. says the findings should persuade every country that smoking in enclosed Spaces is very dangerous to nonsmokers.
疾控中心的TerryPechacek博士说，这些研究结果应该提醒每一个国家，在密闭环境中吸烟对于不吸烟者来说是非常危险的。
Not coincidentally, diabetes is a big national headache, even if the C. D. C. reported last month that new cases of the disease had begun to decline.
无独有偶，虽然据CDC上个月报道，糖尿病的新病例数开始下降了，但它仍是令美国头痛的一大疾病。
The second study, called TDF2 and done in Botswana by the C. D. C., found that those taking Truvada had a 63 percent lower chance of infection.
第二项研究称作TDF2，由疾控中心在博茨瓦纳进行，发现服用Truvada的人群受感染率降低63%。
The invention can realize the nondestructive copy, extend the operating life of the master C. D. and selecting the large numerical aperture to meet the requirement for copying C. D. with high density.
本发明可以实现无损复制，提高母盘的使用寿命，选用大的数值孔径，满足高密度光盘复制的需要。
The differences between group D(C)and B, A were statistically significant(P<0.05). But difference between D and C has no statistically significant.
D组与C组和第B、A组比较，有显著统计学差异（P<0.05），D组与C组两者之间并无明显统计学差异。
Day 15, Friday Chicago to Washington D. C. Washington D. C.
第十五日，周五芝加哥至华盛顿华盛顿。
Day 15, Friday Chicago to Washington D. C. Washington D. C.
第十五日，周五芝加哥至华盛顿华盛顿。
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