查询词典 spindle

The polishing fluid is composed of Al2O3 micropowder with a grain diameter of 0.5-1.0 mum, coal oil, lard, plant oil and spindle oil, wherein Al2O3 micropowder is abradant, coal oil is solvent, the mixing liquid of lard, plant oil and spindle oil is as additive; and the polishing fluid is prepared by a mixing liquid which is composed of 2% lard, 2% abraser, 8% plant oil and spindle oil by volume and 88% coal oil. The polishing fluid can produce the H62 brass element with a uniform surface quality and a good surface roughness value up to 0.008 mum, has the characteristics of no eroding elements, effectively relieving mechanical score, good processing surface quality and can be used for decoration of the plastic metal material and surface polishing process before the material metallographic microscope analysis.

抛光液由粒径为0.5～1.0μm的Al 2 O 3 微粉、煤油、猪油、植物油和锭子油混合而成；其中Al 2 O 3 微粉为磨料，煤油作溶剂，猪油、植物油和锭子油的混合液作添加剂；抛光液按体积比由2％的猪油、2％的磨料、8％的植物油和锭子油的混合液、88％的煤油配制而成；该抛光液能够加工出表面质量均匀，表面粗糙度值达到0.008μm的H62黄铜工件，具有不腐蚀工件、有效缓解机械刻划作用、加工表面质量好的特点，可以用于塑性金属材料的外观装饰性加工，以及材料金相分析前的表面抛光加工。

RESULTS: The microscopic observation showed chondrocytes in the transducted group proliferated stably, and triangle, and spindle cells were predominant in the seventh passage, accompanied by few long-spindle and root cells. In addition, the cells were of clear appearance and large lucency. However, in the non-transducted group, long-spindle cells were observed in the fourth passage, and almost all cells exhibited long-spindle shape in the fifth passage.

结果：①倒置显微镜观察，转导组兔关节软骨细胞生长增殖稳定，至第7代仍旧以三角形、梭形及纺锤形细胞为主，偶见长梭形和树根形细胞，且轮廓清晰，透亮度大，折光性强；而未转导组细胞培养至第4代时即己出现长梭形细胞，自第5代细胞形态几乎全部变成长梭形。

ABSTRACT The researches of this thesis are carried out around the development of high performance machine tool spindle permanent magnet synchronous motor and its drive system. Five parts are included: First of all, concerning the operating characteristics of the machine tool spindle drive system, the optimum current control strategies of spindle PMSM are determined; The design rules of spindle PMSM's key parameters are summarized, based on the study on the influences of the design parameters on the performances of the PMSM operating at different current control strategies; The practical methods to improve the flux-weakening ability of the PMSM are presented; Based on the analysis and comparison of the operating performances of PMSM with different rotor structures, a novel PMSM rotor structure, which is of excellent mechanical performance, suitable for fluxweakening operation and can improve the torque output capacity in the same time, is presented.

本文围绕高性能机床主轴永磁同步电动机及其传动系统的设计研究展开，所做工作主要包括五部分：首先，确定了主轴永磁同步电动机定子电流的最优控制策略；通过对不同控制策略下主要设计参数对主轴永磁同步电动机性能影响的计算研究，总结了参数设计规律；提出了永磁同步电动机弱磁扩速的实用措施；在分析比较不同转子磁路结构电机的性能，尤其是弱磁扩速能力的基础上，提出了一种机械性能优越，易于弱磁扩速，同时能保证电机恒转矩运行时的转矩输出能力的新型转子磁路结构。

The cleavation rates and blastocyst development rates of cloned embryos were used to assess the efficiency of different operational procedure. Finally, the best combination of operational procedure, that the spindle-viewer system was used for oocytes enucleating, and donor cell was electrofused into ooplasm by electrical pulse (1.9 kV/cm, 10 ms, two) to reconstruct bovine cloned embryos.

以核移植胚胎的卵裂率、囊胚发育率作为检测指标，对不同的方法所获得的克隆胚胎的卵分裂率与囊胚发育率进行比较，最后筛选获得1个优化的牛体细胞核移植操作程序，即采用Spindle view系统对牛卵母细胞进行去核操作，将供核体细胞注射到卵周隙，然后通过电融合法将供体核引入去核卵细胞质(电融合参数为1.9 kV/cm，脉冲时程10 ms，方波2次间隔2 s)。

Our major product is belt type spindle for CNC machining center , spindle for drill machine, high-speed direct drive spindle, CTS spindle, spindle for CNC lathe, spindle for grinding machine, customize spindle and repair spindle service.

目前主要生产CNC切削中心机皮带主轴、钻孔机主轴、高速直结主轴、中空出水主轴、CNC车床主轴，磨床主轴等，另外承接非标主轴订制和专业主轴维修业务。

To overcome the disadvantages of one-support bearing, two-support bearing is applied to the fore part of spindle. The minimum displacement of the spindle nose is used as objective function to design the structure of spindle. By these ways, the static and dynamic characteristics of the spindle system are improved, satisfying the...

对于主轴结构，论文建立了以主轴前端动态变形最小为目标函数的优化模型，并对主轴结构进行了优化设计，从而提高了主轴系统的静力学和动力学特性，满足了设计要求。

When cutting tool roaled of spindle's hole by manipulator or other ways,the pull nail behind of knife hilts is sent to ahead of tension bar of spindle. When receives the clamps signal, the pressure oil is passed over the oil cylinder left cavity of the spindle rear part, the piston to the right migration ,tension bar also to right migration by small dish shape spring function, the stell ball of ahead circumference of the tension bar shrink the distribution diameter by spindle's cone hole's force, holds on the knife hilts and pull nail colsely.

当刀具由机械手或用其他方法装到主轴孔后，其刀柄后部的拉钉便被送到主轴内拉杆的前端，当接到夹紧信号时，将压力油通入主轴尾部的油缸左腔，活塞向右移动，拉杆在碟形弹簧的作用下也向右移动，其前端圆周上的钢球在主轴锥孔的逼迫下收缩分布直径，将刀柄拉钉紧紧拉住。

Support the spindle and brake assemblies with wire, wire coat hangers or welding rod.

支住spindle和刹车组件，否则容易导致内部轴承和变速箱脱离。

Then basing the selective thread bar, we can select the speed reducer whose model is XB1-50 . Basing the selective harmonies waves speed reducer ,we can confirm the servo electromotor whose type is 110SZ07 . Then we can design the spindles of every component ,which conclude the spindle of between the speed reducer and electromotor axis, which is a round bond sleeve spindle and the spindle between the speed reducer and the thread bar, which is flat bond sleeve spindle , the bearing , the track whose type is roll track HJG-D25, and the collective structure of the plate.

根据给定的工作台的切削力、传动精度、行程等确定丝杠为滚珠丝杠副FC1-2004-2.5，由丝杠的尺寸及转矩，选择减速器为XB1-50型的谐波减速器，本根据谐波减速器的输入力矩尺寸及减速比，选择伺服电机为直流伺服电机110SZ07，其转速为10000rpm，然后设计元器件间的联轴器，包括减速器与电机轴间的半圆键套筒联轴器、减速器与丝杠间的平键套筒联轴器，设计轴承，导轨为HJG-D25的滚动导轨，及工作台的总体结构。

During cell cycle progression, HURP aas major localizes in cytosol in inter phase. On the other hand, in mitotic cell, HURP was found to associate with spindle fiber.

大量表现HURO-flag融合蛋白质於细胞中，可发现在 inter phase的细胞中，HURP主要位在细胞质，而在mitosis phase时，HURP位在 spindle fiber上。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐