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The Au background values are generally high in the amphibolitic rocks of the Archean metamorphic series, which is the main source bed of the region. Amphibolite facies is the major Au-bearing lithofacies.

太古宙变质岩系中的"角闪质"岩石的金元素背景值普遍较高，为本区的主要矿源层，角闪岩相是含金的主要岩相。

By extending the concept of MBE technique and employing the uniform buffers to separating the sample electrophoresis, the zone electrophoresis was developed. The isotachoporesis technique is based on the separation in a discontinuity form between two buffer solutions and results in separation of samples. The isoelectric focusing is a method that concentrates the ampholyte sample by the pH gradient introduced in the background ampholytes.

区间电泳法以移动边界电泳法作为基础的技术，其在系统环境充满均匀的缓冲液进行分离；等速电泳法则利用两缓冲液进行不连续分离之技术；等电点聚焦电泳法则利用背景溶液建立出pH值梯度，双性电解液样品因其位於等电点所受库伦力为零而聚焦於此。

I do believe that with my solid educational background and ample working experience.

我相信以我过硬的教育背景以及工作经验。

BACKGROUND: Amyotrophic lateral sclerosis lacks of effective therapeutic method.

背景：肌萎缩侧索硬化尚缺乏有效治疗手段，细胞学治疗是研究的重要方向之一。

BACKGROUND: After amyotrophic lateral sclerosis, motor neurons have changes in neural degeneration, but the precise mechanism is not clear.

摘要背景：肌萎缩侧索硬化后运动神经元存在神经变性改变，但其确切机制不明，内源性神经干细胞被认为是未来能有效解决此病的治疗方法之一。

BACKGROUND: Studies concerning muscle-derived stem cell transplantation mainly focused on treatment of muscular dystrophy. There are no studies on muscle-derived stem cells for treatment of denervated amyotrophy combined therapy.

背景：目前，国内外有关肌源性干细胞移植的研究主要集中在治疗肌营养不良性萎缩症方面，尚未见涉及将肌源性干细胞应用于失神经肌萎缩综合治疗的报道。

The use of animals has been central to the development of anaesthetics, vaccines and treatments for diabetes, cancer, developmental disorders...most of the major medical advances have been based on a background of animal research and development.

使用动物对于麻醉学和疫苗的发展，对糖尿病、癌症和紊乱的治疗等极其重要。多数重要的医学都是以动物研究和开发的背景为基础的。

First, the thesis introduces the research background and significance of the project, and summarizes the advantages of the digital monitor system. Its pointed out that the analog monitor system is bound to be replaced by the digital one, and the key techniques in the system are referred to.

论文首先阐述了研究背景与意义，介绍了网络数字监控系统的优点，指出监控系统由模拟式转变为数字式、网络式是必然趋势，并简要提及了数字监控系统中的关键技术。

This paper presents a 12-bit 100 MS/s CMOS pipelined analog-to-digital converter with digital background calibration.

介绍了一个采用数字后台校准算法的12位100MHz流水线模数转换器。

The background of the play is Chicago. Brecht uses the rise of a rascal called Arturo Ui to analogize the rise of Hitler in order for people to have a clearer and deeper understanding of Hitler.

剧作家以美国的芝加哥为背景，用一个小流氓的发迹史来比喻希特勒的发迹史，使人们对希特勒有更清楚和深刻的认识。

They have quite a lot of work to do.

他们有许多工作要做。

Let us give you a more elaborate example of this process.

让我们给你这个过程的更多的详细例子。