在结构上

The bursts and riverway changes of the Yellow River, River Hai and River Huai left many interlaced ancient riverways, deltas and depressions, which make the surface form and shapes of sediments rather complex.

由于黄河、海河、淮河的决口、改道，在平原上留下许多纵横交错的古河道、古三角洲和洼地。使平原区的岗洼交错分布，地表形态和沉积物的结构都十分复杂。

The structure of sulfonated polys from DB is similar to that of sulfonated poly(arylene thioether phosphine oxide)s from TB. The latter could be regarded as the"product"of the former provided that the ether unit of the former was replaced by the thioether unit. The studies illustrated that the latter exhibited much better oxidative stability than the former. This is due to the fact that the thioether unit of the former was oxidized into the sulfone or sulfoxide unit in Fenton reagent, which inactivated the adjacent benzene rings and thus retarded the degradation reaction.

从结构上看，后者可以看成是前者的醚基团被硫醚基团取代后的&产物&，其耐氧化性能比前者好得多，这是因为后者的硫醚基团在Fenton试剂中被氧化成为砜或亚砜基团，而砜或亚砜基是钝化基团，钝化了与之相连的苯环，阻碍了降解反应。

In addition, a pile cap must be designed for flexural shear and punching shear around the heads of piles and the base of columns.

此外，一桩帽结构必须为抗剪、冲切在头上、桩基础的栏目。

Along with the develop of economic , by the application of the light steel structure being common in the building field continually , the requirement of produce equipment also being increase , and the equipment automatization also being increase . Our company study and explore all kinds of colorized steel press board , product line and C/Z type purline moulding machine . Our equipment is simple operation , increase the productivity and debase the cost .

随着经济的发展，建筑轻钢结构在建筑上的应用不断普及，对生产设备的需求量不断加大，对生产设备自动化要求也越来越高，公司投入力度，研制开发各种型号的彩钢压型板生产线及C、Z型钢生产设备，使用操作简便，提高生产率、降低生产成本等。

In accordance with oligonucleotides immobilization, the presences of new chemical structures at different stages were also identified in this study.

对於寡核苷酸引子固定在SAMs上，各阶段新的化学结构变化也给予验证。

A quasi-double layer perforated structure, with veneer as walls, its space between being 0.08 cm, is built when the outer wall is perforated, with each aperture 1 mm, space length 1.5 cm, and the hard sound absorption material is added to the supported.

该隔声室利用胶合板作为双层墙壁材料，两墙壁间距离为0.08cm，外墙壁均匀穿孔，孔径为1mm，间距为1.5cm，并在支撑物上加垫较硬吸声材料组成准双重穿孔隔声结构。

In the design, a lot of key problems were solved, including the decomposition of a complicated control task, the construction of the quasi-equivalent model of the complex object, the design of the characteristic model and multi control modes, the parameter optimization with multi goals, and the assimilation, accommodate and the study evolution of sensory-motor intelligent schema. So a quick effective transition from simulation design to the real-time control was preliminary realized.

在设计上，解决了复杂控制任务分解、复杂对象类等效模型建立、特征模型与多控制模态结构设计、多目标多参数优化、以及动觉智能图式的同化、顺应和进化等关键问题，初步实现了从仿真设计到实时控制的快速有效过渡。

In the membrane structure, we demonstrated the basic photonic crystal lasers and the 12-fold quasi-periodic photonic crystal lasers.

我们在对称的薄膜结构上做了许多种不同设计的光子晶体元件去研究。

Then it expatiates two-row harvester's working theorem and procedure in detail. Besides that, the design of lifting, scroll and support mechanism are also the key parts.

我国现阶段甘蔗的收割还是主要以手工为主，即使用到的甘蔗收割机在结构和性能上也不完善。

Based on these, an improving μ-synthesis is presented, with which the high-purity distillation is designed well. 2. The robust performance problem of MIMO plant is explained with the plant direction angle, which shows that the robust performance varies with different input uncertainties and the μ-synthesis should be applied correctly according to the uncertainty structure. 3. Condition number and bandwidth are the important items for robust performance design in MIMO system. The H〓 two-block problems can not deal with the robust performance design of MIMO system because of the condition number cancellation. A general μ-synthesis procedure for MIMO system with uncertainties is presented. 4. For the SISO system, the object function in robust performance is amplified by at most 〓 than that of H〓 two-block problems in value: So the robust performance of SISO system can be done with the H〓 two-block problems to avoid the complicated μ-synthesis procedure. 5. All the conclusions and methods presented in this paper are demonstrated by some typical design examples.

从而形成一种改进的μ综合方去，并对精馏塔病态对象进行了鲁棒性能设计，得到令人满意的结果；（2）利用对象的方向角解释了MIMO对象鲁棒性能设计出现问题的原因，并提出不同输入摄动形式下系统的鲁棒性能问题也并不相同，因此利用μ综合处理鲁棒性能设计时，应根据不同的摄动情况采用不同的结构进行设计：（3）条件数问题和带宽问题是MIMO系统鲁棒性能设计的两个主要问题，指出由于条件数对消的存在使得一般H〓两块问题无法处理MIMO系统的鲁棒性能设计，而μ综合方法则是处理MIMO系统鲁棒性能设计的有效方法，并给出了其处理MIMO系统鲁棒性能设计的一般性方法；（4）提出对于SISO系统H〓两块问题（S/T问题、S/KS问题）的设计指标函数与鲁棒性能设计的μ指标函数在数值上最大差〓倍，因此对于一般SISO系统的鲁棒性能设计可以简单地用一般的H〓的两块问题处理，而避免μ综合设计的复杂过程；（5）本文中提出的结论和算法都利用H〓/μ发展中的典型例子：Doyle-Stein问题，Safonov的战斗机模型，精馏塔对象等进行了设计验证。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。