无系统的

Theoretically and practically, the study of reactive power optimization in power system is of great significance.

因此，对电力系统无功优化问题的研究，不仅具有理论意义，对电力系统的实际运行也有重要意义。

Syntactical completeness is only concerned with syntactics. The classical proposition logic systems with the rule of substitution are syntactical complete, while the ones without the rule are not.

语法完全性仅与一个形式系统的语法构造相关，经典命题逻辑的有代入规则的系统是语法完全的，无代入规则的系统不是语法完全的。

Syntactical completeness is only concerned with syntactics. The classical preposition logic systems with the rule of substitution are syntactically complete, while the ones without the rule are not.

语法完全性仅与一个形式系统的语法构造相关，经典命题逻辑的有代入规则的系统是语法完全的，无代入规则的系统不是语法完全的。

The design and development of the control system for the Continuously Variable.

本文论述了基于MC68HC912DG128A 单片机的汽车无级变速控制系统系统的设计和研制。

Firstly, this paper introduces the digital circuit system structure of the passive electron tag, the safety question and the parameter that the protocol of ISO/IEC 14443-A requests.

首先，本文介绍无源电子标签数字电路系统的结构、安全性问题以及ISO／IEC 14443-A协议对数字电路系统的参数要求。

The analysis result proves that the design for improvement is more suitable for the design of longitudinal control laws for HALE tailless flying-wing UAV because the autopilot of flight control system is always in-the-loop, it is not necessary to consider the stability augmentation performance of control system such as traditional method.

分析结果表明，由于无人机飞控系统的自动驾驶仪是始终在环的，不必像传统方法一样考虑带有增稳的控制系统的稳定性。因此，改进的设计方法更适合于无尾飞翼式高空长航时无人机巡航状态的纵向飞行控制系统的设计。

In allusion to these difficulties, in the process of researching and developing Lifan320 EV, technicians will attach importance to overcoming small EV unit and the structure of driving system and the optimizing match of parameters; high-performance brushless permanent-magnet motor and the design and industrializing of controller; long life-span triphylite batteries with high-speed charging and discharging and research and industrializing of management system; research of motor, automatic clutch and two-gear transmission; key techniques such as strong power techniques, EMC techniques and whole unit test.

针对这些难点问题，在力帆320的研发过程中，技术人员将重点攻克小型纯电动汽车整车及驱动系统的结构及参数的优化匹配；高性能永磁无刷电机及控制器的设计及产业化；可快速充放电型、长寿命磷酸铁锂电池组及管理系统的研发及产业化；电机、自动离合器及两挡变速器一体化驱动系统的研发；强电安全技术、电磁兼容技术、整车试验等关键技术。

In this paper,a bi-mass model of metal V-belt type CVT system is established,and its dynamic characteristics have been studied in both theory and experiment.

本文建立了无级变速传动系统的双质量模型，从理论和试验两方面研究了金属带式无级变速竹动系统的动态特性。

In a system of neural-nets, unconsciousness is the state of order or the state of unevenness of the system and keeps responses to the order of environment.

在神经网络系统中，无意识是系统的有序状态或不均衡状态，它试图维持自身对环境的有序性作出反应。

This conclusion corrects a mistaken resultIn the planar quadratic system there is not cubic algebraical saddle-nodeseparatrix-loop,in which the author asserrts that quadratic system has no the cubicalgebraical saddle-node separatrix cycle .

本文证明了平面二次系统的三次代数同宿轨线上可以存在鞍结点，并且二次系统可以存在含鞍结点的无返回映射三次曲线分界线环。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。