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Because of mechanism parameters unknown and complicated mathematical calculations,it is very difficult for us to identify screw system independence. However,Klein projective geometry theory is used to discuss screw system dependence in this paper. As a result,it is very easy for us to identify screw system dependence by Klein projective geometry theory,so the problem of discriminating input selecting reasonability is solved.

将Klein映射理论应用到多自由度输入选取的判别中，讨论了3力3偶螺旋系的相关性，给出了相关性的判据，使相关性判别变得非常简单，避免了输入选取判别中复杂的数学运算和机构参数未知的问题，从而解决了输入选取的判别难题。

After studying the theory of combined signal processing with acoustic pressure and particle velocity, a method of direction estimation underwater, which is based on intensity measurement using an acoustic vector sensor, is presented. In the low frequency field with kinds of line-spectra, azimuth angle estimation is achieved based on the probability density statistics and bar graph approach. It can preferably resolve the problem of left/right bearing resolution and estimate the direction of space.

为了对水下目标进行定位，基于声压与振速联合信号处理的理论，研究了复声强法对水下目标信号的定向技术，并使用概率统计和直方图的理论对目标的方位角和俯仰角值进行了估计，在线谱分量存在的低频段对估计角度进行了概率统计，较好地解决了左右舷的分辨问题，实现目标的全空间无模糊定向。

It tells the structure of the automobile lend-lease management system and its working theory; it analyzes the specialty, difficulty and important things in system realization.

阐述了整个机动车租赁管理系统的结构及工作原理；分析了系统实现中的特殊性、难点和重点；设计实现了系统用户管理、基本信息管理、业务管理、会员管理等程序模块；分析并解决了现实中的若干技术问题。

It tells the structure of the automobile lend-lease management system and its working theory; it analyzes the specialty, difficulty and important things in system realization. The design realizes the management of the system users, the basic information, the business, and the members' management.

阐述了整个机动车租赁管理系统的结构及工作原理；分析了系统实现中的特殊性、难点和重点；设计实现了系统用户管理、基本信息管理、业务管理、会员管理等程序模块；分析并解决了现实中的若干技术问题。

It tells the structure of the automobile lend-lease management system and its working theory; it analyzes the specialty, difficulty and important things in system realization. The design realizes the management of the system users, the basic information, the business, and the members management.

阐述了整个机动车租赁治理系统的结构及工作原理；分析了系统实现中的特别性、难点和重点；设计实现了系统用户治理、基本信息治理、业务治理、会员治理等程序模块；分析并解决了现实中的若干技术问题。

The second section:(1) A new kind of paper for LOM is developed by changing the prescriptions of hot molten glue, and properties of the new paper are as good as those of LOM paper from the U. S. A.(2) The testing methods and items for examining the properties of LOM raw materials are provided first of all.

第二部分：对LOM原型材料中的热熔胶进行了改性研究，开发成功了一种与美国进口LOM纸性能相接近的LOM纸，基本解决了LOM叠层材料国产化问题，并首次提出了LOM原型材料性能的测试指标和测试方法。

According to the primary problems limiting Digital Speckle Pattern Interfermetry to be widely used in practical engineering, a novel DSPI method using multi lower power He-Ne lasers to measure the large object was proposed in this project, which overcomes the contradiction between the laser power and the size of object to be measured.

本项目针对制约数字散斑干涉测量（DSPI-Digital Speckle Pattern Interfermetry）在工程中广泛应用的基础性问题，提出利用多个低功率He-Ne激光器测量大尺度构件的新方法，有效解决了高相干性激光器光功率、体积和待测物尺度之间的矛盾，建立了相应的实验系统，并进行了大量的测量实验，获得了满意的实验结果。

Four groups of experiments with different level--indoor simulation experiments, lysimeter experiments, pot culture experiments and field plot experiments-- were carried out to systematically study the environmental effects following the application of fermentation sludge to farmland in Tianjin area, which include soil salinity and potential contamination on ground water, and to primarily investigate the fertility of NovoGro in agricultural soil.

本论文通过四组不同层次的实验—室内模拟实验、渗滤实验、盆栽实验和小区实验，首次对酿造污泥农业利用可能产生的环境影响：1NovoGro对土壤的盐分效应；2NovoGro对地下水的潜在污染，进行了比较系统的研究，同时对NovoGro的肥效特性也做了初步的探讨。成功地解决了制约酿造残渣在天津地区农业利用的关键问题，为酿造污泥的综合利用提供了科学的依据。

In the paper, we put forward the thought of the progress degree on the problem existing in \ and \, using a step transfer matrix of Markov Chain for setting model and making analysis, and given a kind of method on the evaluation of teaching effect.

本文对文献 [1 ]和 [2 ]中存在的问题，提出了进步度的思想，利用马尔柯夫链中一步转移矩阵进行建模分析，给出了一种关于教学效率评价的方法，并通过实例检验，显示了该方法的有效性和实用性，从而较为满意地解决了关于教学效率评价问题。

In order to speed up the convergence speed, the each one step of the Landwber iteration is discomposed into the matrix computation and solution and a quick iteration scheme is given for the matrix computation. The relevant accelerated algorithm is given too. Numerical example proves that the accelerated algorithm can quicken convergence speed, reduce the calculation burden, and overcome the obstacle of application of Landweber method of iterated regularization.

为了加快Landweber迭代收敛速度，将每一步Landweber迭代分解为矩阵计算和求解，对矩阵计算部分设计了一种快速迭代格式，并给出了相应的加速算法，通过数值实验验证了这种算法能够大大加快收敛速度，有效的减少计算量，解决了Landweber迭代正则化方法在实际应用中的障碍。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。