1. He adduced nothing to prove his theory.
   他没能举出例子来证明他的理论。
2. We decided to test the theory experimentally.
   我们决定对这个理论进行实验检验。
3. The biologist advanced a new theory of life.
   这位生物学家提出了一个有关生命的新学说。
4. There is a compelling logic to his main theory.
   他的主要理论蕴含令人信服的逻辑推理。
5. The scientist elucidated his theory by three simple demonstrations.
   这位科学家以三个简单的实例来说明他的理论。
6. He presents the theory in a grossly simplified form.
   他极其简明地陈述了这个理论。
7. He was always forcing anarchic theories down our throats.
   他总是强迫我们接受无政府主义理论。
8. See also electroweak theory, lepton, meson, quantum chromodynamics, quark.
   亦请参阅electroweak theory、lepton、meson、quantum chromodynamics (QCD)、quark。
9. It is not a theory that is commonly subscribed to.
   一般人并不赞成这个理论。
10. This disproves the theory that children are purely imitative.
    这证明认为儿童只会单纯地模仿的理论是站不住脚的。
11. How can a nonscientist explain an abstruse theory with such assurance?
    怎么一个非科学家对这一抽象理论的解释如此自信?
12. She has a theory that drinking milk prevents colds.
    她有一种说法, 认为喝牛奶能防止感冒。
13. Be guard against various sham theories. Don't be fooled by them.
    "要警惕各种假理论,不要上它们的当/不要为它们所欺骗。"
14. According to the classic physical theory,the mechanism of magnetic medium diamagnetism was explained.
    文章从经典物理角度出发,给出了磁介质抗磁性的经典解释方法。
15. It is known that poset theory is important to the study on greedoid theory.
    摘要众所周知，偏序集理论在研究广义拟阵论中起着重要作用。
16. This paper firstly introduces the theory of normalization and denormalization in logical design of database.
    文中首先论述了数据库逻辑设计中的关系规范化与反规范化的问题。
17. The error of“Principle of Superposition”is corrected,whereas a new photovoltage theory is established in this paper.
    本文纠正了“迭加原理”的错误,建立了新的光伏理论。
18. He has constructed a new theory.
    他建立了一种新理论。
19. He has evolved a new theory.
    他已形成了一种新学说。
20. The theory is not yet scientifically established.
    这个理论尚未被科学地证实。

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