有系统的

Moreover, for the treelike system with prescribed motion and the non-treelike system with closed-loop, the generalized coordinates aren't independent completely. Only the dynamical equations of the system and the constrain equations resulting from the prescribed motion and the closed-loop are combined to form DAEs, it can be solved.

另外，对于有指定运动的树系统或带有闭环的非树系统，系统的广义坐标是不完全独立的，系统的动力学方程要与指定运动或系统切断所附加的约束方程一起组成微分--代数方程组才能求解。

The fault diagnosis expert system using the artificial intelligence technology is the progressing tiend of equipment fault diagnosis, however, as typography being so complex, there are still many uncertain and incomprehensive factors that hide the establishing of expert system. So far, there is still no report of Printing Machine Fault Diagnosis Expert System.

利用人工智能技术的故障诊断专家系统是设备故障诊断的发展方向，但由于印刷工艺的复杂性，有许多不精确、不完全了解的因素致使专家系统的建立有较大困难，至今尚未见到印刷机故障诊断专家系统(Printing machine Fault Diagnosis Expert System，PMFDES)的问世。

By means of the qualitative theory and method of delay differential equations, the weak conditions for the bound-edness of the system are obtained. By use of differential mean value theorem and computational techniques on delay differential equations, we show that the system is globally asymptotically stable under condition for the boundedness.

用时滞泛函微分方程的定性理论得到了系统有界的较弱的条件，并运用微分中值定理及有关时滞微分方程的计算技巧，我们获得了在系统有界这样弱的条件下就能保证系统全局渐近稳定的结论。

Based on the analysis on the relationship of the positive and the negative sequence impedance, also the positive and negative fault component current under simple and duplicate fault conditions, a cross-country fault identifier is proposed in this paper.

同杆并架输电线路故障的主要特点是有跨线故障，而当系统发生跨线故障时如果没有正确识别出来，那么保护就很有可能无选择性同时切除两条线路，从而对系统的安全稳定运行造成恶劣影响。

Based on the fact that it lacks of quantification about the theory at present, this paper puts forward the new idea about mechanism of system coupling using emergy method in the ecotone between agriculture and pasture in North China as an example, where has serious dilemma of economical and ecological.

以农牧交错带为例，针对在生态经济系统目前该理论的定量化方面研究不足的事实，提出用能值方法考虑农牧交错带系统耦合的机制，并指出农牧交错带系统耦合机制应建立在土地利用方式、子系统间能值转化过程和生态系统的能值储备上；同时影响系统耦合机制的主要因素有初级生产力的大小、畜牧业的内部结构和畜牧业的发展规模以及生态系统服务价值的大小。

Management Information System is a collection of information technology, economic management theory, statistics and research, database integration technology for the integrated system is a capital-and technology-intensive and labor-intensive, intellectual-intensive projects. China has a vast market and abundant human resources, technical accumulation and decades of accumulated experience, a certain advantages. Mis innovation can not sell, not self-assertive. We should seize the current favorable opportunity to network economy, China's information technology and to achieve a leap forward of the information industry, give better play to the information industry to stimulate economic growth.

管理信息系统是一个集信息技术经济管理理论统计学与运筹学数据库技术为一体的综合性系统，是一个资金技术密集型劳动密集型智力密集型的项目我国拥有广阔的市场和丰富的人才资源，有几十年的技术积累和经验积累，有一定的后发优势管理信息系统的创新工作既不能妄自菲薄，更不能夜郎自大要抓住当前网络经济兴起的有利时机，以实现我国信息技术和信息产业的跨越式发展，更好地发挥信息产业对国民经济增长的拉动作用

The solution of singular system is not unique and impulse-free, which is not existing in regular systems. Therefore, the study on robust control for uncertain singular systems with delays is important both in theory and in practice.

因此，奇异系统是比完全状态系统更具有广泛形式的动力学系统，对不确定奇异时滞系统的鲁棒控制研究具有重要的理论意义和实际意义。

Vocalization through courses of vocalism , dance, percussion instrument, sign-singing and ear

学生在校通过系统的声乐课、舞蹈课、打击乐课、视唱练耳课、录音课、表演课、乐队课以及音乐赏析课进行有计划、有规模、有目的的系统欧美流行音乐唱法培训。

Students will learn designedly, purposefully and systematically the American and European pop vocalization through courses of vocalism, dance, percussion instrument, sign－singing and ear－training, recording, performance, band interpretation and music enjoying and music analysis.

学生在校通过系统的声乐课、舞蹈课、打击乐课、视唱练耳课、录音课、表演课、乐队课以及音乐赏析课进行有计划、有规模、有目的的系统欧美流行音乐唱法培训。

For the tracking system, the means that can intellectively assist the fault diagnosis and maintenance is significant. Then we can avoid relying heavily on the experiences of the engineers and can reduce the probability of the event that engineers climb up to the antenna with heavy instruments when the faults turn out. For the data channel, to get the high-qualified remote sensing images, we need to get the quantitative data about how the factors influence the BER of Receiver .The data can help the design of receiver and the evaluation of the performance of a receiver. This thesis mainly contains those two parts.

对于跟踪系统，研究一套能辅助系统故障诊断及维护的智能手段是非常有意义的，这样系统维护时可以避免过多依赖技术人员的维护经验，特别是接收天线发生故障时携带仪器攀爬天线的情况；对于数据通道，面对高质量的遥感图像数据要求，我们需要得到影响接收机误码性能的各主要因素对应的量化数据，这些数据对于接收机的设计及性能评估是非常有帮助的。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失