不能使用的

The reference domain is assumed to be a bounded open set of R~N with boundary Γ of class C~2. We investigate in this paper the null controllability for the semilinear parabolic equations in non-cylindrical domains. The fixed point method is used in the proof.

本文讨论了定义在上述非柱形区域中的半线性抛物方程零能控性，我们使用的方法主要是通过同胚映射将非柱形区域中的抛物方程转化为柱形区域中的抛物方程，再利用不动点方法得到半线性抛物方程的有关结果。

In this paper, according to the characteristics of central projection, aerial photographs were analyzed to discuss displacement of images under tilt conditin or caused by ground undulation, based on which the principles of tilt error and projection error were summarized.

根据中心投影的特性，论述了像片在倾斜条件下所引起的像点位移和像片因地面起伏而引起的像点位移，在对其进行分析的基础上总结出倾斜误差和投影误差的规律，从而说明了不能把像片当作地形图使用。

Scene data indicate that in the process of actual making the casing into the Horizontal Well ,people used to reduce friction coefficient between the stratum and the Casing, Change the friction type between the casing and the wall,use special casing and centralizer with oriented ring, even join the slurry in the internal casing in order to increase self-casing, etc.

现场资料表明，在实际套管下入过程中，人们往往采用的是减小套管与井壁之间的摩擦系数、改变套管与井壁间的摩擦类型，使用带有导向环的套管和扶正器，甚至在套管内部加入泥浆，以增加套管自重等方法，但这些方法并没有改变套管下入驱动力减少的现实，不能从根本上解决套管下入困难的问题。

U.S. National Institutes of Health, Food and Drug Administration, Center for Disease Control and Prevention and the U.S. Agency for International Development to form a special team of the scientific study of the condoms hepatitis B, AIDS, gonorrhea, chlamydia, syphilis, chancroid, lymphogranuloma venereal disease, genital herpes and condyloma and other 9 kinds of sexually transmitted diseases, the protective effect and found that the current widespread use of condoms is not safe and effective to prevent any the spread of a venereal disease!

美国国立卫生研究院、食品和药品监督管理局、疾病预防和控制中心以及美国国际开发署共同组成的科学特别小组，研究了避孕套对乙肝、艾滋病、淋病、衣原体、梅毒、软下疳、性病淋巴肉芽肿、生殖器疱疹和尖锐湿疣等9种性传播疾病的保护效果，发现目前广泛使用的避孕套不能安全有效的防止任何一种性病传播！

Closed system architecture. Neither the traditional system architecture, nor the noticeable backbone architecture can supply system with enough flexibility. Also they can not create a neutral platform to integrate other systems conveniently.

系统结构方面：无论是传统的独立运作系统，目前广泛使用的套件配置模式，还是倍受注目的主干结构，都不能为系统提供一个全面开放的系统结构或完全中立的集成框架。

METHODS: We did a prospective study in 393 consecutively enrolled patients who were tested simultaneously with T-SPOT.

我们对393名连续录用的患者做了一个前瞻性的研究，由于不能确定这些患者是潜伏性的或是活动性的结核病，我们同时使用T-SPOT。

Epictetus relies on the stoic distinction between what is within our power "the use of the phenomena of existence"—and what is not, namely, the phenomena of existence themselves.

爱比克泰德依照了斯多各派的区分原则：我们力所能及的---"存在之物的使用"；和我们力所不能的，命个名的话，叫做存在之物本体。

But here we use the call back function of second drive class with the first window, so we can't executer the message handler of first window.

但在这里我们使用了回调的第二个驱动器类功能的第一个窗口，所以我们不能执行器的第一个窗口的消息处理程序。

In contemporary society nonmainstream areas of inquiry such as astrology and fortune-telling satisfy human needs more than mainstream science.

上面只是对习作的第一段的语言进行了修改，使用不当词句可以参看脚注的指正，然而只是这样的修改还不能使这一段成为一个好的开头段。

The indirectness of communication conceals the formation of schisms-different team members use terms differently but don't realize it.

这种间接的交流掩盖了结构上的分裂--不同的团队成员使用不同的术语而却不能意识到这一点。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。