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Both the MWZC set with ideal intra-group correlation properties and its combination sets of specific subsets can achieve the theoretical bound as long as a complete complementary sequence set with subsequence length 1 is used a basic kernel.

而且，无论是MWZC序列集合还是它的特定子集组成的合并集合都可以达到理论界限，从而在给定相关性能和序列长度的条件下，可以获得最大的序列数目。

A theoretical description of the deformed state of QCs requires a combined consideration of interrelated phonon and phason field. The phonon field describes the motion of lattices in physical space, while the phason field describes the quasiperiodic arrangement of atoms in the complementary orthogonal space, which interact with one another. Owing to the existence of phason field, the elasticity of QCs is more complex than that of the conventional crystals.

准晶弹性的刻画不仅需要描写晶格振动的声子场，还需要刻画原子准周期排列的相位子场，而且二者是相互耦合的，所以准晶的弹性较经典的一般晶体的弹性复杂的多。

In addition, depending on the method of numerical simulation and theoretical analyses, some kinematic and geometric features of 0° involute—enveloping worm gear drive, such as meshing surface, first—type limit, second —type limit, worm surface, the numerical representation of contact line and bearing contact, are systematically studied. These relevant conclusions provide an important basis for the design and manufacture of new type worm gear set. As we predict, the method of numerical simulation has special effect in solving the question of complex conjugate surface.

综合利用仿真方法与解析手段，对0°渐开线包络蜗杆传动的啮合面、一类界限、蜗杆齿面构成、仿真接触线及仿真接触域等运动几何学特性进行了系统研究，有关结论为此种新型蜗杆副的设计与加工提供了重要基础，并且显示出数字仿真方法在研究复杂共轭曲面问题时所具有的特殊功效。

In addition,the proposed method provides theoretical reference for developing the new CNC grinding system of complex shaped surface.

同时，新工艺为新型的复杂曲面CNC磨削工艺系统的开发提供理论参考。

Based on the theoretical analysis of the test results, considering the cohesion force component of the shear strength, the judgment method of gushing in pit is quantified for the first time and is compared with engineering practice.

在对试验结果进行理论分析的基础上，根据试验的结果考虑基底土层抗剪强度的黏聚力分量，量化地提出软土地基基坑突水的判断方法。

METHODS: The theoretical hypothesis of texture composite hydration system was proposed.

提出了织构复合水化体系的理论假说。

Based on analyzing and comparison of the several kings of theoretical formula and analyzing the composition and influence factor, this paper improves a common formula used in calculating jacking force in pipe jacking.

本文针对当前非开挖技术基础理论研究滞后于工程实践的现实，对顶管的推力理论、水平定向钻进的管道回拖力及其水平钻进过程中的孔壁失稳机理等问题进行了研究。

This research focuses on the investigation of application of compound combustion engine in generating sets. Through theoretical analysis and practical applications of diesel and generating sets produced by our company, comprehensive investigations have been carried out in such aspects as soot and NOx emissions reduction from compound combustion engines, specific fuel consumption reduction, improvements of fuel economy of generating sets and compound combustion engine meets special power match of generating sets.

本课题主要着眼于组合燃烧发动机在电站机组中的应用研究，通过对本公司生产的柴油机和电站机组的理论分析和具体实践，在组合燃烧发动机减少碳烟和NO_x排放，降低当量比油耗，提高机组的使用经济性，以及组合燃烧发动机满足电站机组特殊的动力匹配方面进行了创造性的总结，并论证了适合我国技术水平和能源状况的组合燃烧理论。

The paper advanced the estimate system of reused mixture performance, including the correcting formula of calculating theoretical maximum density and estimate guideline, which would found basis for the compound proportion of reused mixture in practice.

提出了再生混合料性能的评价体系，包括对再生混合料最大理论密度计算的修正公式和对再生混合料性能的评价指标，可为实际生产中再生混合料的配合比设计提供了依据。

In this thesis, we use empirical method and theoretical analysis comprehensively.

本研究采用了实证研究与规范分析相结合的方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。