By expounding the measurement technology of the spindle motion error and the error separation techniques,the paper introduces the basic principle of virtual-position reading,and analyzes the role the signal-reorganization-based virtual-position reading plays in the error separation techniques.
在阐述机床主轴径向回转误差误差分离技术的基础上,介绍了虚位数据法的基本原理,分析了基于信号重建的虚位数据在误差分离技术中的作用,并用此方法把虚位数据应用于机床主轴回转误差分离技术中。
This paper presents an anelytical procedure to synthesize optimum dimensional tolerance bands of planar linkages,which is based on the method of unity virtual velocity and is computerized easily and effectively.
提出一种以单位虚速度法为基础的平面连杆机构尺寸公差带优化综合的解析法 ,使用该方法能方便地编制出相应的计算机程序 ,有效地实现尺寸公差带优化综合自动化。
a number of the form a+bi where a and b are real numbers and i is the square root of -1.
用abi来表示a和b是实数i是虚数单位等于的平方根。
Application of Digitization Virtual Technique and Fracture Unit of Concrption Analysis in Fracture Pathogenesis
运用数字化虚拟技术和骨折单位概念分析骨折病理
quantities (units and symbols)
数量（单位和符号）
A Brief Analysis of Fictitious Accountancy of Construction Corporations in the Theme of Accounting;
在会计主体下虚拟建设单位会计浅析
No leading members of local authorities, departments or units may compel or prompt statistics institutions or statisticians to tamper with or fabricate statistical data.
各地方、部门、单位的领导人不得强令或者授意统计机构、计人员篡改统计资料或者编造虚假数据。
A single unit, as in counting, rating, or measuring.
单位一种单位，如计数、测试或测量中所用的单位
Log/cell average CFAR circuit
对数单元平均恒虚警电路
being one in number--a single unit or thing.
在数字中单一的－单一的单位或事情的。
foreign trade unit value index
对外贸易单位价值指数
index of average unit price paid
平均单位支付价格指数
denoting a quantity consisting of six items or units.
指由六个单位组成的数。
weight horsepower
以重力为单位的马力数
unit numerical code
五单位数字保护电码
port unit value index
出口商品单位价值指数
a unit of measurement of information (from Binary+digIT); the amount of information in a system having two equiprobable states.
信息单位（二进制数字IT）。
index of labour cost per unit of output
单位产品劳动成本指数
A specific number of words used as a unit for measuring the length of the text of a document.
单位字数用来计算文件的文章长度的单位字数
sign a contract in the name of a made-up unit or under somebody else's name;
以虚构的单位或者冒用他人名义签订合同的