查询词典 null hypothesis

Unewisse M H Performance of uncooled semiconductor film bolometer infrared detectors 10.1117/12.188679 SPIE , 1994,null

孔详谦%王传溥有限单元法在传热学中的应用北京：科学出版社， 1981，null

Results 300 cases of patients with botulinum toxin type A treatment effect were 234 cases (78%), 66 cases were effective (22%), 0 case was null and void.

结果：300例患者行A型肉毒毒素治疗后显效者234例（占78%），有效者66例（占22%），无效者为0例。

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。

Bowker John H%Michael John W Atlas of limb prosthetics:surgical,prosthetic,and rehabilitation principles St Louis:Mosby Year Book , 1992,null

燕铁斌%金冬梅平衡功能的评定及平衡功能训练中华物理医学与康复杂志， 2007，11

If the function succeeds, the return value is a pointer to the first byte of the memory block.If the function fails, the return value is NULL. To get extended error information, call GetLastError .

如果函数调用成功了，则返回值是内存块的首字节的指针，如果失败了，则就返回 NULL ，可以利用函数 GetLastError 获得更多的失败信息。

If the function succeeds, the return value is a pointer to the first byte of the memory block.If the function fails, the return value is NULL.

如果函数执行成功，返回值就是指向内存对象首字节指针，否则返回NULL。

If the function fails, the return value is NULL. To get extended error information, call GetLastError.

如果函数执行失败，返回值是NULL，调用GetLastError函数可以得到错误的情况。

If the user chooses the Cancel button in the dialog box, the return value is NULL.

如果用户选择取消按钮的对话框中，返回值为NULL 。

The factor which is most detrimental to the formation of the null voltage is the capacitive coupling between the primary and secondary coils.

对形成零电压最有害的因素是初线圈和次级线圈之间的电容耦合。

Methods The target DNA sequence of yrdC was obtained from human spleen tissue by using RT-PCR,construct high titer recombinant adenovirus Ad-yrdC by using AdEasy adenovirus carrier system,detect yrdC protein expression by using Western blot and immunohistochemical method,set up control group and transfected Ad-Null group,and study the effects Ad-yrdC on BGC-823 cell line by drawing cell growth curve and MTT chromatometry.

方法用RT-PCR方法获取人脾脏组织yrdC基因序列，采用AdEasy腺病毒载体系统构建携带yrdC基因的高滴度重组腺病毒Ad-yrdC，将其转染胃癌BGC-823细胞，应用Western blot和免疫组织化学法检测yrdC蛋白表达，设对照组和转染Ad-Null组，并分别绘制细胞生长曲线和MTT比色法研究Ad-yrdC对BGC-823细胞的影响。

Who? I never heard of him, Paul said, before asking teammate James Posey if he had heard of him.

赛后，科比说，他一直都是一名非常出色的射手，今天他打得很棒。

When I joined the company, I rotated around the different sections.

我加入这个公司时，轮换过几个不同的部门。