查询词典 efficient

In this thesis, we stretch the traditional definition of the cutoff region, and propose a simple but efficient rule based on it.

本论文通过对传统截止区定义的拓广，给出了一种较简单可靠的判断准则。

And then we bring forward a strategy of building metadata warehouse and a method founded on CWM metadata model, aiming to settle the problem which DW metadata can not be efficient utilized since they are short of unification.

并针对目前数据仓库系统共同存在的元数据缺乏统一规范，导致各种数据仓库工具之间的元数据因不统一而得不到有效利用的现状，提出基于CWM元模型的方法，构建元仓库。

The result indicates that CWT is an efficient tool to predict the secondary structures of proteins, and has a tremendous development foreground.

结果表明：该法可较好地预测蛋白质的α螺旋、连接多肽，具有极大的发展前景。

It is of great academic and practical importance to study and develop highly efficient and environmentally friendly catalytic cyclohexane oxidation processes.

本文尝试采用普通氧化物负载的纳米金催化剂用于以氧气为氧化剂的环己烷选择性氧化反应。

The commercial process of cyclohexane oxidation to cyclohexanone and cyclohexanol shows low conversion, poor selectivity, high-energy consumption and environmental pollution. It is of great academic and practical importance to study and develop highly efficient and environmentally friendly catalytic cyclohexane oxidation processes.

现有的环己烷氧化制环己酮生产工艺，存在转化率低、选择性差、能耗高以及污染环境的缺点，研究和开发高效、环境友好的环己烷催化氧化工艺具有重要的理论意义和实用价值。

The commercial processes of cyclohexane oxidation to cyclohexanone and cyclohexanol generally show many problems, such as low conversion, poor selectivity, complicated technology, high-energy consumption and environmental pollution. So it seems to be of great academic and practical interesting to study and develop highly efficient and environmentally friendly catalytic cyclohexane oxidation processes.

现有的环己烷氧化制环己酮和环己醇生产工艺普遍存在转化率低、选择性差、工艺复杂、耗能大和对环境污染严重等问题，这就使得研究和开发高效、环境友好的环己烷催化氧化工艺具有重要的理论意义和实用价值。

In the 1980s in the medicine circles of China, there was a blind spot in? Zhu Changqing' parents visited all the hospitals in Shanghai in order to find out the pathology. At last, they searched the cyclopedia for the information and found the brief explanation less than 100 words. It was said that the cause of this disease was still a mystery, maybe resulted from gene mutation, and till now there was no efficient means to treat it.

80年代的中国医学界，对神经性肌肉疾病的认识是一个盲点，朱常青的父母亲为了了解孩子的病因，跑遍了上海所有的医院，请教了众多的专家，最后还是仅仅百科全书里找到不足百字的词条介绍，大意是这种病的病因还不是很清楚，可能是由基因突变引起的，目前尚没有找到治疗的有效手段。

3 Recently, we reported an efficient tin-free version of this reaction involving thiophenol for the preparation of cyclopentane derivatives through a 1,5-hydrogen transfer/cyclization sequence [Eq.(1); AIBN=azobisisobutyronitrile].

最近，我们报道了高效的、不使用锡试剂而使用苯硫酚的反应，这个反应是通过1，5-氢转移/环化步骤制备环戊烷衍生物的[化学反应式(1)；AIBN=偶氮二异丁腈][4]。

We also discussed this unusual reaction process and proposed a reasonable "one method,two paths" mechanism.These novel iodine-mediated oxidative cycloadditions provide a rapid and efficient route to the preparation of a variety of spiro dihydrofuran and cyclopropane derivatives.

该反应不使用昂贵的催化剂；反应过程中不使用有毒有害的有机溶剂，对环境友好；反应时间短，收率高；在相同条件下得到不同结构的产物，这提供了一种新型的合成二氢呋喃和环丙烷结构的环化反应。

The algorithm is practicable and efficient in finding approximate roots of a cyclotomic polynomial, and gives a new method to judge a polynomial that can pitch cirle.

该算法在求分圆多项式的近似根方面是可行的，并取得比较好的效果，为判定一个多项式是否分圆提供了一种新方法。

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。