精密

A theoretical model for calculating the cutting angle with different crystal planes, orientations and tool orthogonal rakes are described in this paper. It is built with the ultra-precision cutting model by the principle of the maximum specific energy of shear deformation and the mechanism of change of the shear modulus with...

本文利用剪切变形比能最大及单晶材料不同晶面晶向剪切弹性模量不同的原理，结合超精密切削模型，从理论上计算出不同晶面、不同晶向及不同刀具前角超精密切削条件下的剪切角，得到其在不同切削条件下的变化规律，并由此解释了切削加工中由KDP晶体各向异性所导致的工件表面粗糙度的各向异性。

Global position system can revise the cumulative error of dead reckoning navigation system,such as strapdown inertial navigation system and Doppler navigation ,with its ability of accurate navigation and positioning when it is applied to the navigation system of autonomous underwater vehicle.

全球卫星定位系统应用于远程自主水下航行器导航系统中，可利用其精密导航和定位能力对航位推算导航系统如惯导和多普勒导航的累积误差进行精密校正。

Several crite- rions are presented relying on all possible instances for third-order profile planning. Based on these criteria and dynamic constraints, fast and accurate algorithm of profile planning with time-optimality by preprocessing the entire profile as a whole is described. Ac- curacy losses in discrete time implementation are considered.

这类运动对精度和效率的要求极高，甚至要求纳米级精度，而轨迹规划是超精密运动的重点和难点之一，其轨迹规划精度直接决定了运动精度和性能，因此，与此相适应的快速精确的轨迹规划算法成为了现代超精密运动系统必须解决的问题，是提高竞争力的必要手段。

Has provided the precise automatic weighing and matches feeding system for the material,the high yield extruder,the precise double spiral plane piling up complex head,the closed-loop control auto-matic vane,has the independent patent in cold system,there is exquisite steadily soaks device,the rotator ,the electronics corona process.

配备了精密的自动称量和配送供料系统，高产量挤出机，精密双螺旋平面叠加复合机头，闭环控制的自动风环，拥有自主专利的内冷系统，精巧的稳泡机构，旋转器、电晕处理器等。

Our company is a private enterprise which was establised in 1998, specializing in manufacturing precise filters, automatic drainer, air pressure gauge and other purify equipment parts.Our products are precisely processed by CNC machinel lathe,thus about 99.9% of the products do reach the standard level requirement .

公司建于1998年，主要生产精密过滤器、自动排水器、压差表、压差器及其它净化设备配件，公司的产品均采用CNC数控车床进行精密机械加工，产品合格率达99.9%。

In order to put the rack-head-on-machine measuring large gear method into practice, key problems, such as measuring device precision fix to the machine tool. precision angle measurement. eccentric compensation.

为了实施大型齿轮齿条形刃边测头在机测量方案，文中针对测量装置在机床上的精密安装与定位、精密角度测量、齿轮安装偏心补偿及测量数据处理等，这些对于大型齿轮测量具有共性特征的关键技术进行了系统分析。

EDG is preponderant distinguishingly in precise, ultra precise machining of super hard, low stiff...

电火花磨削加工在超硬、低刚度、微细和其他特殊零件的精密、超精密加工方面具有特殊的优势。

Die Another of the company to operate with precision guide columns, guided pack, round, square line aids, date chapter polished alloy head, alloy File, rubber wheel, emery cloth wheel, flint Aberdeen, fiber oilstone, spring milling, ultrasonic polishing equipment , precision cold SLIDE, easy car iron.

另本公司经营冷冲模用精密导拄，导套，圆形、方行辅助器，日期章，合金打磨头，合金锉刀，橡皮轮，砂布轮，火石仔，纤维油石，铣床弹簧，超声波抛光设备，精密冷拉管，易车铁。

In the precise ephemeris interpolation and sophisticated interpolation bad bell, when the three parameters were 5,11,10 and 2,8,3, they can achieve the desired results

在精密星历插值和精密钟差插值中，当三个参数分别为5、11、10和2、8、3时，即可取得理想的结果

Delicate Check: sleeve crown of false tooth, magnetism fixed false tooth and other delicate attachment of false tooth

精密修复：套筒冠义齿，磁性固位体义齿，栓道义齿等精密附着体义齿

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。