使...影响

As long as the root of the characteristic equation is within the unit circle of z-plane and the corresponding PID parameter is got, the closed loop control system is sure to be stable. Although the root of the characteristic equation can vary within the unit circle of z-plane,different value may affect the control property differently.

本文所采用的这种确定PID参数的方法，虽然可以使特征方程的根在z平面的单位圆内任意取值，但各种取值情况对变风量空调系统的控制品质的影响却不同，因此，要对各种特征方程的根的取值情况进行寻优，本文采用遗传算法对特征方程的根进行寻优，从而使控制器的参数得以优化。

Because chronic obstructive inflammation of airway severely influences the ventilation and exchange function of COPD patients, The motor ability of patients is limited .Despnoea and fatigue limit patients to sedentary,because of this, skeletal muscle began to analosis,oxygen uptaking capacity of skeletal muscle descends,and concentration of chondriosome degrades.Function limitation of skeletal muscle causes oxygen needs increase,so vicious cycle emerges,and further to restrict patient's respiratory and motor function.

由于气道的慢性炎症性阻塞，严重影响了慢阻肺患者的通气及换气功能，使得患者的运动能力明显受限，因喘息和疲劳而限制了患者的运动能力，使患者出现久坐，由此出现骨骼肌的萎缩，骨骼肌摄氧能力下降，线粒体氧浓度降低，骨骼肌的功能受限又会引起通气量不足，进而引起低氧血症和高碳酸血症，使患者的摄氧需求增加，由此出现恶性循环，进一步制约了患者的呼吸和运动功能。2001年正式提出肺康复作为中重度COPD患者稳定期非药物治疗的首选管理方案。

Upon successful completion of this course, the student will be able to: state the role of civil engineers in society; list significant achievements and key engineers that have contributed to the development of our built environment; explain how the profession is regulated and practiced; describe key issues related to sustainable development and the associated responsibilities of the engineer; and discuss the major contemporary issues involving civil

课程目标为使学生了解土木工程师如何影响社会文明的发展，并加强学生对自身社会的关怀，与对本科历史的认识、探讨工程师及专业人士在其专精领域中的伦理关系及近代工程发展对社会生活型态、法律财经及环境生态的影响与未来二十一世纪土木工程所面临的挑战等问题。

The whole history of coalification...

整个聚煤历史表明由于地壳运动不均一、沉降幅度不同等因素影响了沉积环境，从而使聚煤作用发生空间方面迁移的现象，而气候影响则为次要的因素。

By disposal of partial least-squares regression, the collinearity of roadway surrounding rock displacement influence factors is removed and the principal components having optimum explanation to dependent variables are extracted. It makes node numbers of neural network input layer cut down to three from seven, and has effect of simplifying structure and strengthen stability of neural network.

通过偏最小二乘回归对巷道围岩的位移影响因子的处理，消除了影响因子的线性相关性，并提取了对因变量解释性最强的成分，使BP网络的输入层节点数目由原来的7个减少到3个，起到了简化网络结构，增强网络稳定性的作用。

Under certain conditions, the activation and migration of soil Cd were accelerated by the interaction of Pb and Cd and increased Cd uptake by wetland rice. The organic-bound Cd in rizhosphere decreased by 90%. These phenomena illustrates that the interaction is very important for the transformation of soil Cd fractions. Meanwhile, the interaction distinctly affected the composition of roots secretion and their coordination abilities with heavy metals, causing clear variation to Cd amount in root cortex and middle columniation.

在一定的实验条件下，Pb和Cd的交互作用促进了Cd的活化与迁移，增加了水稻地上部分对Cd的吸收，使根际土有机结合态Cd下降了90%左右，表明交互作用对Cd形态的转化是一个重要的控制因素；同时交互作用对根系分泌物的组成及其与重金属的配位能力有着明显的影响，使Pb、Cd在根系皮层和中柱中Cd的含量有明显变化。

Network congest can make network communication quality drops not only, still can affect the QoS of service quality standard of the user, still can affect network safety even.

网络拥塞不仅会使网络通信质量下降，还会影响用户的服务质量水平QoS，甚至还会影响到网络平安。

China is considered the largest source of BC emissions in the world, which has not only made negative effects on domestic climate and environment, but also invoked blames by others due to the cross-nation transport to countries or regions downwind (e.g., Japan, Corea, and even North Amaerica).

我国被认为是全球最大的BC排放国，大量的BC排放不仅对我国的气候和环境产生了显著的负面影响，而且由于跨境迁移影响到下游的国家或地区（如韩国、日本、甚至北美），使我国在环境外交中处于被动。

How will milk cow be comfortable and how will the output of milk not be affected at the circumstance of torridity?The paper briefly expatiates this problem.So when we design the cowhouse,it is necessary to consider the infection of condition high temperature.

如何在炎热气候下要使奶牛感到舒适，不影响产奶量，这需要在设计牛舍时考虑减少环境高温的影响，本文对此进行了简要的阐述。

If you thought they didn't make albums like Neil Young's "Everybody Knows This is Nowhere" anymore, cue up "Ghosts of the Great Highway," and marvel over the fact that Kozelek and company are able to cross-pollinate folk, country, punk, and psychedelic influences without sounding the least bit retro, stealing the purifying flame of Crazy Horse meltdowns like "Cortez the Killer" while sounding like no one but themselves.

你认为，他们不象尼尔杨一样使集子"，每人知道这无处"再，向上的暗示是"大的公路的鬼线"，并且越过那些事实的奇迹那Kozelek 和公司能够穿过受粉人们，国家，朽木和引起幻觉影响没有发出那些重新流行一点儿最小，在只听上去是他们自己时象"科尔特斯消除剂"一样偷使燃烧纯化不含的发疯的马熔化。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。