运算部件

In analog computer, an arithmetic unit constructed by a servo system.

在模拟计算机中，一种由伺服系统构成的运算部件。

A processing unit feature that provides four 64 bit floating point registers to perform floating point arithmetic calculations.

一种可提供四个64位的浮点寄存器来执行浮点算术运算的处理机功能部件。

Four'.'' 64 bit floating point registers to perform floating point arithmetic calculations.

四'。''个64位的浮点寄存器来执行浮点算术''。'运算'。''的处理机功能部件。

A counter used in the arithmetical unit to count the steps in multiplication, division, and shift operation.

在运算部件中，对乘、除、移位操作中的操作步进行计数所用的一种计数器。

Another MCU, 89C2051 is used to realize the control of the three rows LED monitor showing coordinates of axis X and Z axis and other state of the system. Charnel A and C of 8155 are used for editor keyboard, which make the inputting or editing of the NC code and data possible. Charnel P1 of 8031 is used for the operation keyboard such as system power on/off and movement of axis X or Z. a programmable parallel I/O chip, 8255, is used to achieve system I/O and the transmission of other information. In summarize, the system developed is characterized by its simplicity, low development cost and high reliability.

在CPU存储器扩展电路设计中， CPU选用MCS-51系列的8031单片机，外扩32K的程序存储器和 8K的数据存储器，分别用于存放系统管理程序、数控加工程序以及运算数据；在显示电路设计中，选用MCS-51系列的89C2051单片机作为从CPU，控制三排LED显示器，用于X轴、Z轴动态坐标以及相关数字的动态显示；在手动键盘和编辑键盘设计中选用8155芯片的PA口和PC口作为行、列母线，扩展矩阵式编辑键盘，用于程序和数据的输入或编辑，同时选用8031单片机的P1口扩展手动键盘，用于系统启动、停止以及运动部件在X、Z轴方向的手动控制；在I/O口扩展电路设计中选用8255芯片扩展输入输出口，用于接收和传送开关量及相关信息。

The inputs to it are divisor and dividend, the outputs from it are quotient and remainder.

一种完成除法运算的部件，它的输入是除数和被除数，输出是商和余数。

Image processing calculations are pertormed by the CPU for each camera and the positios of the LCD panels are automatically adjusted .Then the LCD panels are adhered to the optical block by UV bonding by means of a UV irradiator.

在各个相机设置的CPU接口上进行图像处理运算，自动进行LCD面板的位置调整后，在UV照射装置中，在光学部件上UV接合LCD面板进行贴付。

In the computation of floating-point addition,it might generate some leading zeros in the sub-traction of mantissa.

1导言目前很多应用中需要使用高速浮点运算部件，其中加减运算的应用尤为广泛。

This systerm is mainly basing on the MCU DS89C420, on basis of solvement and calculation of various electric signals, it can adjudge the signal of crank angle sensor . According to the feedback impulsury of server electromotor photoelectric coder, it can samples datas of top dead center and piston distance continuously.

本文所述的数据采集系统是以高速单片机DS89C420为核心部件的工作系统，能够对各种电信号进行处理、运算，实现对曲轴角度传感器的信号进行判断并依据伺服电机光电编码器的反馈脉冲进行曲轴上止点和活塞行程数据的连续采集。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。