重要地位

Based on the important station of holographic grating in information optic and spectrometer,the theoretical analysis of holographic gratings and a new experimental system of making holographic gratings were presented in this paper.

基于全息光栅在信息光学及光谱仪中的重要地位，对全息光栅进行了理论分析，提出了一种新的制作全息光栅的实验系统。

The results show that:(1) 435 cases of CMN are found in 46, 790 newborns with an incidence of 9.30％;(2) the incidences of CMN are obviously higher in parturients at the age over 35 and under 20 years, in multiple gravidity but primiparity, and in individual labourers and unemployees;(3) the incidences of CMN are...

结果表明，本地区7所医院5年间分娩新生儿46790名，发现各类先天性畸形435例，畸形发生率为9.30％，同时发现产妇年龄大于35岁、小于20岁、多胎初产、个体职业和无业者其新生儿畸形率明显较高；新生儿则以男性、早产儿、低体重儿的畸形发生率较高，差别有统计学意义(P.05或P.01)，产妇不同民族间未发现统计学差别。在先天性畸形的种类构成中，神经系统畸形特别是神经管缺损和脑积水占有重要地位。

So, are also very good are not old Su, guarana in energy generated lines accounted for a very important position.

所以也是非常优良的不老素，瓜拉纳在能量产生系中占极重要地位。

Hadamard matrix as an orthogonal matrix was investigated by Sylvester from 1867, possess important position in block design, it was used extensive in project and communication. The thesis has discussed the relation of Hadamard matrix and Walsh function as well as pseudo-random sequence.

Hadamard矩阵最早是作为正交矩阵由Sylvester在1867年开始研究的，在区组设计中占有重要地位，其广泛应用在工程和通信上；本文着重讨论了Hadamard矩阵和Walsh函数以及伪随机序列的关系，最后所得结论具有一定的理论意义和应用价值。

In 1826, Mr. Nicephore Niepce, the French inventor of photography and heliography, obtained the first image in photography. Since then, as an expression of high technique of traditional photographic industry, large-format photography has been considered irreplaceably important in the development of photographic art.

自1826年，法国摄影术和印刷制版发明者尼埃普斯在实验室中制成世界上第一张可以摄影成像的图片起，大画幅摄影，就作为传统摄影业高端技术的表现形式，一直在摄影艺术的发展中占居着不可替代的重要地位。

And the concept teaching plays a vital role in higher mathematics teaching.

数学概念教学在高等数学教学中占有重要地位。

Richard Hofstadter was one of the most famous historians in American of 20th century.

本文通过梳理和解读美国从二战后到越南战争期间最著名的历史学家之一，理查德·霍夫施塔特的史学思想之旨趣，凸显这位出色的学者对美国史学发展的贡献及其在美国史学史上的重要地位，并以此揭示处于转型时期的美国史学特征、乃至整个西方史学特征。

As important measures of assessment and evaluation, tests hold a significant position in curriculum design and classroom teaching.

测试作为一种评估工具，在课程设计和教学中具有重要地位。在语言教学领域亦是如此。

Cerna Hora became the headquarters of large enterprises with significant regional competence.Cerna Hora Brewery again extended her scope of operation and took the a great role in Czech beer business.

由于强大的地区竞争力，黑山啤酒成了大企业的主导，再一次扩大了黑山啤酒厂的规模和在捷克啤酒业内的重要地位。

Hough transform plays an important part in the image processing. It is an effective approach for curve detection.

Hough变换在图像处理中占有重要地位，是一种检测曲线的有效方法。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。