重要中心

During the total preparation process, it was inevitable to conduct with the chiral center of prolinamide and the target product would became racemized or even could not be obtained at all.

由于在合成过程中，不可避免的触及不对称中心，发生消旋使产率下降甚至得不到产物，因此本文还研究了D-脯氨酰胺在不同温度、pH值、反应时间下对它的消旋的影响和脱羧机理，这对以后的工业化生产有着极其重要的意义。

ScienceDaily (May 8, 2009)— Iron plays a large role in brain development in the womb, and new University of Rochester Medical Center research shows an iron deficiency may delay the development of auditory nervous system in preemies.

科学日报（2009年5月8日）报道：铁是胚胎时期脑发育的重要因素，罗切斯特医学中心最新研究显示铁缺乏可能使早产儿的听觉神经系统发育迟滞。

Yuanyang、Pinger、Xiren、 Zijuan are four big servant girls in the novel, although they are not major roles, but actually have the vital role for content structure of the entire book and have thoughtful integrity.

鸳鸯、平儿、袭人、紫鹃这四大丫头在小说中虽不是中心人物，但却对全书内容结构及思想完整性有重要作用。

First, the mechanism of chatter in milling process and the technology of identifying chatter have been studied in the paper.

因此，研究利用普通加工中心，实现先进制造系统的自动质量检测和状态监控，对实际生产有着重要的意义。

So, it is great meaningful on the research of the architecture and performance of a OBS scheme in the dissertation.

因此，光突发交换技术的体系结构和性能研究作为本文的中心课题是具有重要的现实意义。

Today's NUBS is a comprehensive school with two disciplines of economics and management, and serves as both an influential training base for economics and management talents and a center for academic research.

今天的商学院是一个拥有经济学和管理学两个学科门类的综合性商学院，一个具有广泛影响和重要地位的经济管理人才培养基地和学术研究中心。

The capital and largest city of Hawaii, on the southeast coast of Oahu. Honolulu's harbor was first entered in 1794 by a British navigator. Settlement of the area began in 1816, and the city soon gained prominence as a whaling and sandalwood port. Today it is a major tourist center.

檀香山，火奴鲁鲁：夏威夷首都和最大的城市，位于欧胡岛东南沿海1794年一个英国航海家首次进入火奴鲁鲁1816年起开始有人定居，不久该城便成为著名的捕鲸和檀香木的港口，现今是一个重要的旅游中心。

In west-central Africa, they have found what they call an important missing link in the history of H.I.V.

在非洲西部的中心，他们发现了被他们称为在人类免疫缺陷病毒的发展历史中一个重要的缺失的链环。

In west-central Africa, they have found what they call an important missing link in the history of H.I.V.

在非洲西部中心地区，他们发现了他们称为H.I.V。历史上一个重要的被遗漏的环节。

In west-central Africa, they have found what they call an important missing link in the history of H.I.V.

在非洲西部中心，科学家们已经发现了被他们称为与HIV起源关系密切的非常重要的缺失的一环。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。