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The performance of magnetic suspension is determined mainly by its control system. Due to the inherent nonlinearities and open-loop instability of the magnetic suspension system, as well as the problem of uncertainties caused by parameter variety and disturbance, increase the difficulty of magnetic suspension control technology.

悬浮性能的好坏主要取决于控制系统的设计；由于悬浮系统本身固有的非线性特性和开环不稳定性，以及参数摄动和外干扰引起的不确定性等问题，增加了悬浮控制技术的难度。

In view of the problem of parametric optimization in a nonlinear control system,this paper presents a new simulating method of optimization to be combined with the theory of a nonlinear control system,optimization theory and genetic algorithm.

摘 要］本文针对非线性控制系统参数优化问题，结合非线性控制系统理论、最优化理论及遗传算法，提出了一种新的仿真优化方法。

An S-shape acceleration/deceleration control model is developed by summation progression and the corner of two conjoint lines is adopted as a parametric variable to control the feedrate through the inflexion of two lines. Based on these, interpolation process is divided into two steps: interpolation pretreatment and interpolation point calculation. Feedrate planning is accomplished in the pretreatment step. Interpolation point calculating only depends on the real-time feedrate and the direction vector of the line.

该算法以级数求和的方法推导了S型加减速控制模型，并以小线段夹角为参变量控制拐点通过速度建立了小线段速度衔接模型，在此基础上，算法将插补过程分解为插补预处理及插补点计算两个步骤，预处理中对小线段进行速度规划并设计了线段速度的递推处理方法，插补点仅需根据当前速度及线段方向向量即可求出。

Challenge was made after one month of immunization by vein. Re sults:The parasitemia of recombinant virus immunized monkey was 0.0 1%in first tw o days of post-challenge. No parasites were determined from third to 12th day. W hereas the parasitemia of control virus immunized-monkey and blank control monk ey rose progressively,went to 2.5%～6.0% at 6th～8th days of post-challenge, an d the t ime of parasitemia was 12～13 days.

结果： 在免疫后1个月攻虫，重组痘苗病毒免疫猴从第3天一直到第12 d的采血检查中均未发现疟原虫；非重组痘苗病毒免疫猴第3天后原虫感染率上升，第6天原虫感染率最高达到6.0%，而后原虫感染率逐渐下降，原虫持续时间为13天；空白对照猴第3天后原虫感染率也上升，第8天原虫感染率最高达到2.5%，而后原虫感染率逐渐下降，原虫持续出现时间为12 d。

According to the result of nationwide human parasitic disease distribution survey, the public significance of parasitosis control was set forth in terms of preventive health care and economic impact as well as parasitosis control and primary health care.

根据全国人体寄生虫分布调查结果，从寄生虫病对我国人体健康的危害，对经济建设的影响以及防治寄生虫病和卫生条件及卫生习惯的关系等方面阐述了寄生虫病防治在我国预防保健中的重要地位。

Parasitosis control ; public health ; primary health care ; health education ; mass deworming ; comprehensive control measure

寄生虫病防治；预防保健；初级卫生保健；健康教育；集体驱虫；综合防治措施

This paper described the research and use of the new techniques on diagnosis,surveillance and control of parasitosis in domestic animal and poultry in Sichuan and South-western China,especially on applying resources of parasitic species in the pilot areas,so that the capacity of control and prevent of parasitosis in sheep,pig and dairy cattle farms were reasonably improved.

本文介绍家畜寄生虫病诊断、监测新技术与防治新技术等技术资源在四川及西南地区的研究与利用，特别是在示范应用区利用现有畜禽寄生虫虫种资源和技术资源，提高了绵羊养殖场、规模化养猪场、奶牛场的寄生虫病防治水平。

A new control technique for control of parasitosis in the sheep farms was made, including "periodical monitor, deworming according to parasitosis level, evaluating the deworming effect".

从而建立起"定期监浊、按需驱虫、及时评估"的控制技术，实施2年来的结果表明，该场绵羊的主要寄生虫病即片形吸虫病和线虫病的感染率分别下降了80.51%和27.80%。

Preseration of neural function is also an important consideration because neural control of anal and urethral sphincter function and parasympathetic nerous system control of the distal colon, genitalia, and urinary bladder are all proided by the S2–S4 nere roots.

神经功能的保留也是要重点考虑的因素，因为S2–S4神经根中有控制肛门及尿道括约肌的神经纤维，和控制远端结肠、生殖器及膀胱的副交感纤维。

The blood IgG and IgA level of new soldiers is significantly lower than that of control,But the IgM level is higher than that of control.Conclusion It suggest that old soldiers' paratroop stress is normal,the high stress can be lessen by training.

新兵在跳伞应激状态下免疫功能受抑制，但老兵免疫能力没有下降，某些免疫指标还有增高，表明老兵跳伞应激的反应是适度的，严重的跳伞应激可通过多次的训练而得以减轻。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。