几种的例句大全

This paper introduces several kinds of principles of pulse jet technology, discusses their advantages and disadvantages, sums up the rules of pulse jet beating the target and analyses its stress characteristics.

本文概括介绍了几种脉冲射流技术的原理，探讨了各自的优势与不足，归纳了脉冲射流打击靶体的规律，并分析总结了脉冲射流的应力特点。

Some types of probability distributions previously used for estimating wave height in return period are reviewed in this aper.

本文对以前使用的推算重现期波高的几种概率分布进行了评述。

By introducing the lattice theory and considering a cubic unit cell, the water permeability of concrete is obtained for several lattice arrangements of aggregates, which indicates that the arrangement of aggregates is an important factor that affects the water permeability of concrete.

引入晶格理论，取立方体单元胞，求解混凝土骨料几种不同规则排列下的混凝土相对水渗透系数，计算结果表明骨料排列是影响混凝土水渗透系数的重要因素。

A comparison of the egg-white proteins in the genus anas& an attempt to trace the origination of the Peking Duck

鸭属中几种鸭卵蛋白质的比较&对北京鸭起源的探讨

Comparison of Several Range Curvature Correction Algorithms

几种SAR距离弯曲校正算法比较分析

Residual stresses in the rail web of high strength rails from several foreign countries were measured by the saw cut method, and the effect of residual stress on rail web cracking was discussed.

通过采用锯切口法测定了几种进口高强度钢轨轨腰残余应力，阐述了残余应力对轨腰水平脆断的影响。

Ased on type selection of stilling basin for the river cutoff project in Lishi county, slope types of stilling basin are presented in this paper.

结合山西省离石县改河扩城工程中消力池的选型试验，提出了几种消力池体型。

And the main factors which influence critical tool cutting edge angle are studied, and related theory analysis are made. Furthermore, some new controlling methods and technologys to restrain or decrease the feed direction burrs in machining Processes are developed.

讨论了有关主要因素对临界主偏角的影响，进而开发出了几种抑制或减小进给方向毛刺的新工艺和新方法。

Another field experiment showed that: 0.3% azadirachtin EC on black cutworm has a good control effect, up to 69.29%.

几种植物源农药的药剂筛选结果表明：0.3%印楝素乳油对小地老虎具有不错的防效，可达69.29%。

It found that with the same load amplitude and different loading times, several different deformation modes exist no matter for free forming or for modeled forming.

发现在载荷幅值相同、加载时间不同时，无论是自由成型还是有模成型，都存在着几种不同的变形模式。

A Numerical Comparison Study of the Methods of Rockfill Dam with Concrete Facing

面板坝堆石体几种动力方法数值解对比

Temperature field thermography on friction facing of certain wear-resistant alloys

几种耐磨合金磨损温度场的热图

Several methods of extracting rules from database using neural networks are surveyed in this paper: extracting rules based on BP network and BP algorithm using combining weight algorithm.

评述了利用神经网络从数据库中进行规则发现的几种方法，采用权值组合算法提取规则；

The effects to height evaluation of the main noises, i.e. ocean surface backscatter speckle noise and receiver thermal noise, are analyzed. By analyzing the returned signals of several typical sea states, the results have shown that the system height measurement precision can be ± 2cm.

分析了主要噪声，即海面斑点噪声和接收机热噪声对高度估值的影响，通过对几种典型海况海面回波的模拟分析表明，系统则高精度可达±2cm。

Finally, though the suspension quantitative bactericidal test, compared the bactericidal effect results with these different kinds of product and receive homologous conclusion.

最后通过悬液定量杀菌实验，对这几种产品的杀菌效果进行研究和对比，得出相应结论。

Several means by computers to calculate the absorption of low-concentration gas when balanced line is curve

平衡线为曲线时低浓度吸收应用计算机计算的几种方法

Extraction methods of natural lac dye as well as its application to silk and cation modified cotton are discussed.

介绍虫胶染料的几种提取方法，及其在丝和阳离子改性棉上应用的研究进展。

Compared with Ah J-1 strain, outer membrane protein profiles and some biochemical characters of the mutant strain had changed, and some genes of main virulent determinants could not be expressed, such as proteases, amylase, DNase and hemolysin.

与J-1株相比，突变株的外膜蛋白图谱和部分生化特性发生改变；胞外蛋白酶、淀粉酶、DNA酶、溶血素等几种主要毒力因子同时丧失；

Study on Effect Applying some Biological Agent in Hot pepper

几种生物菌剂在辣椒上的应用效果初报

This paper briefly introduces the technology of data broadcast especially the technology of vertical blanking interval, and compares the several other method of data transmission.

本文简要介绍了数据广播技术，特别是图文电视技术，并比较了这几种常用的数据广播技术。