无主的

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。

For thus hath the LORD said unto me, Within a year, according to the years of an hireling, and all the glory of Kedar shall fail

21：16 主对我这样说、一年之内、照雇工的年数、基达的一切荣耀必归於无有。

Three stages of main lifting cylinder apart 8m, vertical distributed in the inferior of working platform which is isosceles triangle.

三台主升液压缸相距八米直立分布在等腰三角形的爬模机工作平台的下方，爬模机工作平台无任何导向机构。

For thus has the LORD said unto me, Within a year, according to the years of a worker, and all the glory of Kedar shall fail

016 主对我这样说：一年之内，照雇工的年数，基达的一切荣耀必归於无有。

According to the transformer's equivalent circuit, the value of the current injected to the transformer's secondary winding is controlled, so that the value of transformer impedance in power system can be controlled.

本方案将变压器的一次侧串联接入电网，在电力系统正常运行时，变压器主磁通为零，故障限流器呈现很小的变压器一次侧漏阻抗，压降很小，对电力系统运行无影响。

In some flying shears the running performance of the top and bottom selsyn roller usually can be improved by using main-second gear on the gear of the driven shaft.It can make the gear working at no lateral gap and eliminate shock load.

在某些飞剪机上，为了改善上下滚筒同步齿轮的工作性能，被动轴上的齿轮往往采用主副齿轮结构，以便齿轮在无侧隙情况下工作，减少和消除冲击负荷。

A non invasive evaluation system is developed to estimate the ratio of pulmonary to systemic pressure with audio Pulsed Wave Doppler signal and ECG,and to calculate those parameters automa...

小儿肺循环无创评估系统利用计算机自动处理主、肺动脉音频脉冲多普勒信号和心电图信号，计算它们之间的血流时间间期参数比，最后估算出肺动脉的血压

Any flowerless plant such as a fern or moss in which growth occurs only at the tip of the main stem.

仅生长在主茎末端的蕨类或苔藓类的任何无花植物。

Magnesia alumina spinel brick is based on high-purity magnesia and synthetic magnesia alumina spinel with major crystal phase of periclase and spinel. By intensively mixed, double-face pressed and fired at high temperature. Being completely chrome free, it is the ideal refractory for the transitional zone of cement kiln characterized by superior thermal shock resistance, good anti-erosion capacity, and lower thermal conductivity.

此次展会为您展出的水泥回转窑用镁铝尖晶石砖以高纯镁砂和合成镁铝尖晶石砂为主要原料，主晶相为方镁石和尖晶石，经过强力混练，双面加压，高温烧成等工艺制成，是水泥窑过渡带的标准耐火材料，具有无铬污染，热震稳定性好，耐磨损，抗侵蚀性强，热导率低等特点。

The pial arteriolar constriction observed at 5 min or more afterunclamping in the control group was not altered by PGE1 in eitherlarge or small arterioles.

而在开放夹闭的主脉之后的5分钟甚至更长时间内，相对于对照组静注 PGE1对软脑膜大小微脉收缩效应无显著影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。