主要问题

In this work, according to the fact that the precipitation of ferreous and ferric iron to form magnetite nanoparticles is the fast reaction, we designed a new forced mixing route to prepare magnetite using nitrogen press in T type of tube to reach the intention of mixing in microscale and avoiding oxidation.

本文针对目前磁分离载体研究过程中存在的主要问题，从理论和实验两方面入手，设计和制备了两种纳米结构的生物磁分离载体微球，探讨了相关的科学问题，并在生物与医学应用方面进行了初步的研究。

One of the main problems exiting in modern enterprises is inspiriting the stuff.

激励问题是现代企业要解决的主要问题之一，股票期权是能够满足此需求的一种激励机制，其最大作用是按企业发展成果对经营者进行激励，使经营者的个人利益与企业的长期发展更紧密地结合在一起。

Seismic resolution is always the key issue in thin reservoir and lithologic seismic exploration and is also one of the main problem that is a trouble to geophysical development.

地震分辨率一直是薄储层和岩性地震勘探研究的主要问题，也是困扰地球物理发展的问题之一。

Scales and arpeggios constitute a large part of piano playing, and the technique required in this activity takes care of a major share of pianistic problems.

音阶与琶音是钢琴弹奏的重要组成部分，音阶与琶音所要求的弹奏技巧问题，是钢琴演奏家面临的主要问题。

The main interest of this paper is to study a Lipschitz control problem associated to a second order ordinary differential equations with pointwise state constraints.

第一章首先分析综述了国内外对此类控制问题的研究历史、现状以及本文所研究的主要问题和意义。

The main problem with this algorithm is thatrecogn ition of pornograph ic images relies heavily on skin color andshape, and the final use of a human face detector in a weightedju dgment is only a manual patch aimed at preventing the problemati coccurrenc e of large faces being identified as pornograph y, but alsothe reliabilit y of empirical weighting lacks verificati on.

这套算法的主要问题是，色情图像的识别严重依赖于肤色和肤色形状；而最后使用人脸检测加权判定也只是手工打补丁避免出现大幅人脸识别为色情图像问题的办法，且经验权值可靠性缺乏验证。

Presented the settle means of Fiber Bragg Grating sensor's cross-talking problem or simultaneously measu- ring of temperature and strain. Introduced some main problems of Fiber Bragg Grating senso- rs that needed to be solved when it's applied in practical use.

提供了光纤光栅传感器在温度和应变测量中交叉敏感问题的解决办法，介绍了光纤光栅传感器在实际应用中需要解决的几个主要问题。

For the book is a small batch but much variety product, the mostly propaganda manner of publishing enterprise is just to print advertisement in the newspaper or carry book review, and not to launch the triphibious propaganda offensive. As to specialize conduct, although our publishing enterprise have definite consciousness, but have less progress yet; The collectivization is the developing trend for our publishing industry in recent years. It exists many problems in despite of having taken much achievements.

至于专业化行为，目前我国出版企业虽然已有明确意识，但进展并不大；集团化是我国出版产业近年来的发展趋势，尽管取得了一定的市场绩效，却也存在不少问题，本文在全面分析我国出版集团目前存在的主要问题的基础上，提出了合理的改进建议。

This white paper case study highlights the main problems with customer service today, how to solve these problems and how Pella Corporation utilized Oracle's single data model to create a 360-view of their customers.

这份白皮书着重个案研究的主要问题与客户服务的今天，如何解决这些问题，以及如何利用pella甲骨文公司的单一数据模型建立360针对客户。

There are many factors attributing to the issue about the development of national autonomous regions which is currently a major issue in China's development.

民族自治地方的发展问题是当前我国发展中的主要问题。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！