查询词典 Ac

The design of the device using NC Lathe CA6240 control, part of the main transmission system using AC spindle motor and graded by the pulley driven spindle gearbox, through the inverter and gearbox to achieve sub; Feed System used by stepper motor driven ball screw slowdown after campaign vertical feed system through a gear after the ball screw drive, in the horizontal feed system through two gear-driven ball screw; Tool to automatically transfer tool carrier (4-position), thus achieving automatic tool change; by MCS-51 series 8051 data to be dealt with.

本设计利用数控装置对CA6240普通车床进行控制，主传动系统部分采用交流调频主轴电动机经带轮及分级齿轮变速箱驱动主轴，通过变频器和齿轮变速箱实现分段无级变速；进给系统采用步进电机通过减速后驱动滚珠丝杠运动，在纵向进给系统中通过一级齿轮减速后驱动滚珠丝杠，在横向进给系统中通过二级齿轮减速驱动滚珠丝杠；刀架改为自动转位刀架从而实现自动换刀；通过MCS-51系列8051单片机对数据进行计算处理，由I/O接口输出步进脉冲信号控制进给速度和行程；为了保持切削螺纹的功能，要在主轴外端或其它适当部位装上脉冲发生器；将车床的手动尾座改造成为可控电动尾座。

In case Sporting give AC Milan the green light to negotiate terms with Veloso, Premier League teams Manchester United and Arsenal are expected to make a move for the midfielder, who is currently on international duty with the Portuguese national squad.

以防里斯本为米兰就贝罗索的转会开绿灯，同为豪门的曼联和阿森纳也试图得到这名中场球员，他现在正在随葡萄牙队征战欧洲杯做准备。

AC gold metal plate, electrical accessories, electrical equipment, other machinery manufacturing, processing.

空调钣金，电器配件，其他机械电器设备的制造，加工。

Research on the history of western legal thought has ac hieved remarkable success with the endeavor of grand old man.

西方法律思想史课程在我国法学课程体系中的重新确立，至今已经有二十多年了。

He reached the 100-goal mark before turning 21 and by the time of his sale to AC Milan in 1961, Greaves had scored an incredible 132 times in 169 appearances.

在21岁之前，格里夫斯的进球就达到了100个。1961年，他转会去了意大利的AC米兰，为切尔西留下了169场打进132球的成绩单。

The DC/AC inverter performs MPPT and delivers low distortion output current to the grid.

直流/交流逆变器演奏的MPPT和提供低失真的输出电流，以网格。

Anyway, I figured it was DC on the AC line, Ground loop, etc...

不管怎样，我想这是特区的AC线，接地环路，等等。。。

Step 4- Connect the ground wire of AC input cable to the GND IN terminal.

步骤4-将AC输入的地线接到地线端。

Using DC and AC poling methods, three groups of polarized PZT/P 70/30composites have been prepared by poling only the ceramic phase(1), both ceramic and polymerphases in the same(2) and opposite(3) directions. Piezoelectric coefficients of group 1 compositesincrease as the PZT content increasing, while for group 2 composites, the piezoelectric coefficientschange the sign with increasing PZT content because piezoelectricity of copolymer is increasinglycompensated by that of PZT, and PZT content for zero-〓 isn't that for zero-〓. The experimentdata of both group 1 and 2 composites agree well with EMT-Shin model.

对复合材料的压电性能：只极化PZT粒子相的复合材料的压电系数随陶瓷分数的增大而增大，PZT粒子相与共聚物基体同向极化的复合材料的压电系数由于两相效应的部分抵消，随陶瓷含量的增大，发生符号的改变，且〓和〓零点不重合，它们与EMT-Shin模型都符合较好；而两相反向极化的复合材料的压电系数由于AC反向极化会导致陶瓷相极化程度的下降，导致实验值和理论预期偏差较大，尤其在PZT粒子高含量区。

On the contrary, Guanosine or xylosyl adenosine could increase the reponse of AC to PTH si...

而鸟苷或木糖腺苷则可显著增强PTH对AC的刺激作用。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"