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It is very important to expore the genotoxity of formaldehyde, toxicity mechanism and repair for understanding formaldehyde genotoxicity as well as nosogenesis completely and systematically. In addition, this research will benefit a lot to estimate and improve the indoor air quality by providing scientific foundation and make a safe environmental and occupational concentration standard.

探讨甲醛的遗传毒性，毒性机制等，对全面和系统的了解甲醛的遗传毒性的致癌性，进一步评价和改善室内空气质量具有十分重要的意义，并为制定安全的环境和职业浓度提供更科学的依据。

This purpose of design is a computer simulation ventricle except that electric vector quantity of the heart surrounds the running orbit very much, through the stereoscopic and dynamic way, show the course that the vectorial ring of electricity of heart forms, can make student image, understand electric vector quantity of the heart ocularly; Type the well practical foundation in order to study the kind electric picture.

本设计目的是计算机模拟心室除极心电向量环运行轨迹，通过立体动态的方式，展示心电向量环形成的过程，使学生能够更形象，直观地理解心电向量；为学好心电图打好切实的基础。

Supported by the National Science Foundation of China, this thesis concentrates on the image sparse representation theories, methods and the image processing applications based on sparse representation. We make deeply study for the applications based on multiscale geometry analysis, theories of overcomplete sparse image representation and its applications, theories of sparse image representation via combined transforms and its applications.

本文在国家自然科学基金项目&联合基图像稀疏表示理论研究及其应用&的资助下，针对图像稀疏表示理论、方法以及基于稀疏表示的图像处理应用问题，重点围绕多尺度几何分析在图像处理中的应用、基于冗余字典的超完备图像稀疏表示理论及应用、组合变换图像稀疏表示理论及应用等内容进行了探索性的研究。

First, we research and discover the problems of employee's performance evaluation: the contents and standard of results evaluation, principal and period, the appliance of evaluation performance. The standard of performance evaluation isn't unification, overmany evaluation principal and overmuch evaluation period make more difficulties in the process of the evaluation, and the appliance of evaluation result isn't perfect. Then we analysis these problems and give our suggestion,confirm the Key Performance Indicators as the foundation of the evaluation.

首先通过实地调查和研究，发现吉林市烟草公司员工绩效考评的问题，分别从绩效考评的内容和标准、考评主体、绩效考评周期和考评结果应用等几个方面进行分析，发现存在以下一些问题：没有统一的考评标准，考评主体多不便于考核实施，考评周期过于频繁，考评结果应用上力度不够等；在分析的基础上形成咨询建议：确定关键业绩指标考评基础，逐渐形成基于KPI的员工绩效考评方案。

Second, mordern science investigates Nature only through mathematical way, which make people take the mathematical nature for Nature itself. Third, its result is physicalistic objectivism was seen as the metaphysical foundation of natural science which has led to the riddle of cogni...

本文认为，胡塞尔的科学批判虽具有重要启发意义，但从科学和科学哲学的角度来看，他的批评在某些方面是不恰当的：①实证主义科学观固然不是健全的科学观，但现代科学自身却不是意义、价值等形而上学的领域；②尽管数学化的自然并不是自然本身，但数学化却是现代科学最有效、最可靠的方法；③胡塞尔反对任何实在论的自然观，但这种自然观是现代科学世界观的基础。

Vetiveria zizanioides grow in ringent hinge jointed concrete extending system, and its roots are interlaced and make foundation soil into compound materials of soil and roots, but grass roots are considered as three-dimensional reinforced materials which increase soil strength and the stability of bank protection.

通过在开孔的铰链式混凝土块铺面系统中种植香根草，其根系在基土中盘根错节，使基础土体成为土与草根的复合材料，草根可视为三维加筋材料，使土体强度提高；更有利于护岸防冲系统的稳定。

They persist in professionally producing motorcycle tyres and tubes and taking the rubber tyres and tubes as foundation, realizes the multi-kinds of products which make the enterprise become steadiness, vigour, strongness anbigness.

多年来，公司领导高瞻远瞩，坚持专业生产摩托车胎，以橡胶轮胎为基础，实现产品多元化，把企业做稳，做活，做强，做大。

All make is a political power to the social property rights of legal turn and systemize, it is the foundation which produces a relation.

所有制是政权对社会财产所有权的法定化与制度化，它是生产关系的基础。

This study suggests that this method not only make a sound foundation for the future computational structural studies with phosphotyrosines involved, but also have potential application to the protonation state determinations of other amino acids with titratable groups.

表明该方法不仅为涉及磷酸酪氨酸的蛋白质相互作用的计算结构研究奠定了基础，在其它具有可电离基团的氨基酸的质子化状态判定中也将具有潜在的推广应用价值。

This method is tectonic on foundation of nuclear function theory special and linear space, each issue of rank nucleus of progression of the Volterra that seek solution changeover uses output observation vector to be in to beg Xierbaite the some in the space child the umbriferous problem on the space, make originally complex, hard calculative is nonlinear in the approachs a problem to be built in place compose linear space of Volterra progression of the system solve ably with the means that accumulates inside vector, gave out specific algorithm.

该方法在核函数理论基础上构造非凡线性空间，将求解Volterra级数的各阶核的新问题转换为求用输出观测向量在希尔伯特空间中某一子空间上的投影新问题，使原本复杂、难以计算的非线性系统的Volterra级数的逼近新问题在所构建的线性空间中巧妙地以向量内积的方式解决，并给出了具体算法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。