并联

There have been also some adjustments to the value of the tweeter coupling capacitor; these are part of the relative balance adjustment.

当时并对高音单体并联电容的数值做了一些修正，这是整个平衡调整的一部分。

Firstly, velocity expression of translational parallel manipulator was presented based on the screw theory. Secondly, the actuated screw, the actively unactuated screws and idle screws of each limb were determined according to the reciprocal screw theory. Then, all basic kinematic chains were enumerated by means of the number of limb connectivity and the limbs containing closed-loops were obtained by replacing the passive prismatic joints in the basic kinematic chains with planar closed-loop structures.

首先基于螺旋理论给出移动并联机构的速度表达式，然后根据互易螺旋理论确定出分支的主动螺旋、可动非主动螺旋和惰性螺旋，再依照分支连接度的不同列举出所有可行的基本分支运动链，并通过运动副替换得到分支中含有闭回路结构的运动链，最后利用所综合出的支链按照主动副的配置要求将动平台和静平台连接起来即可实现预期的机构。

A state variable feedback based system control approach, which indirectly controls load voltage by means of controlling the supply current, is proposed, thus the problem that the undamped DC transient component of supply current, which is caused by the linking inductance between power supply and power loads under PI control mode, is solved.

分析了仅由1套逆变器构成的并联型综合电能质量调节器的结构特点和控制目标，提出了一种基于状态变量反馈的系统控制方法，通过控制电源电流来间接控制负载电压，很好地解决了常规比例–积分控制时电源和负载间的连接电感所导致的供电电流直流暂态分量不衰减的问题。

Unfortunately, there is inevitably difference in characteristics of the induction motors and converters in a parallel AC drive system, therefore each induction motor as well as converter can not operate at the same working point, some may be overload, some underload.

并联着的各个交流调速系统的负载是不均衡的，这是因为逆变器所带的负载—异步电动机参数及特性不可避免地存在差异，两或多台逆变器作为电源，其等效参数也很难一致，各驱动轮径总存在偏差，因此各台逆变器的输出电流和各台异步电动机的定子电流是不相一致的，有的逆变器、异步电动机可能过载，有的还可能欠载。

And the effect of variations of per unit length line parallel conductance is presented.

并显示变化传输线单位长度并联电容之效应。

And the effect of variations of per unit length line parallel capacitance is presented.

并显示变化传输线单位长度并联电容之效应。

There are not relations between the design complexity and number of parallel units, and it is easy to equalize the DC current of different unit through vector group changing. Simulations and experiments prove that the present technique is right and effective.

该调制方法不仅保持了传统SVPWM技术的所有优点，且实现简单，其控制策略的复杂程度与并联单元的数目无关，仿真和试验验证了方法的正确性和有效性。

Because of the opposition and unitarity of serial mechanisms and parallel mechanisms in philosophy,the hybrid mechanisms can be built through the combination of parallel and serial mechanisms and play an important role in some specific application background.

本文以此为背景，深入研究了若干种空间三自由度并联/混联机构的新构型，提出了几种重要的性能指标的建模及优化方法，并就具体的应用领域进行了有益的探索和挖掘。

The Al/PAR/Al structure could be described as a simple circuit equivalent to parallel connection of a variable resistor and a capacitor.

Al/PAR/Al结构可以简单等效为电阻与电容的并联，而退火与自然放置将使薄膜结构趋于稳定。

Can not pay attention to high baking temperature should be controlled at below 125 ℃;⑶ current dry: submersible pump according to the impedance and power of the size of the motor three-phase windings in series or parallel, and then access a variable resistor, adjust Current for the rated current value of around 60%, drying power.

注意烘烤温度不能过高，应控制在125℃以下；⑶电流干燥：可根据潜水泵的阻抗和电源的大小将电动机三相绕组串联或并联，然后接入一可变电阻器，调整电流量为额定电流值的60%左右，通电干燥。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐