等轴的

For guaranting the centre of oscillating axle in oscilla tor head being coincident with the centre of hone 's arc surface and centre of raceway curvity, JFX series optical diopters are adopted for adjustment.

在球轴承套圈沟道超精时，为保证振荡头摆轴中心、油石圆弧面中心和沟道曲率中心三者重合，采用JFX系列光学瞄准器具有很多优点，文中介绍了该仪器的光学原理、使用方法和注意事项等。

Description: The technology shall be applied in finishing of thin-wall cylinder sleeve, required to reduce the geometric tolerances, including roundness tolerance, cylindricity tolerance and coaxiality tolerance.

内容说明：该技术应用在薄壁缸套的精加工方面，要求降低圆度，圆柱度，同轴度等形位公差。

The results show that, firstly, Stellera chamaejasme L, which rely on their developed axial root system in the 10～40cm soil layer to occupy the competitive priority of volume, length, surface area and so on, in the case of their adaptive faculty to poor surroundings resulting from fruit picking, trampling and overgrazing as well as with the phenomenon of restrained growth among various plants, gradually become the dominant plant in the herbaceous community; secondly, this kind of degraded grassland has not displayed any general characteristic of degradation such as surface exposure, accumulative quantity of vegetation reduced, water loss, soil erosion and so on, therefor, it should be dealt with distinguishingly; thirdly, if"Stellera chamaejasme L Killer"and"Oxytropis ochrocephala Killer"invented by CAS are taken advantage of respectively in the bloom period of Stellera chamaejasme L and at the beginning of florescence of Oxytropis ochrocephala bunge by ultra-low volume spray of 1. 05L/hm〓 and 1. 35～165L/hm〓 dosage separately, the death rates of poisonous herbs may achieve above 95% and 92% correspondently; fourthly, this technology with the characteristics of high work efficiency, exclusive selectivity and convenient operation, is safe to non-target plants and other animals, and has no toxic or side-effect to environment; furthermore, an execution of"Stellera chamaejasme L Killer"spray and a two-year grazing prohibition can be effectively applied on degraded grasslands of"Weed and Poisonous plants Type".

结果表明：狼毒凭借发达的轴根系在10～40cm土层中形成的体积、长度、表面积等竞争优势，以及对采食、践踏、过度放牧所形成的不良环境的适应能力和异株克生现象的存在，逐步成为草群中的优势植物；毒杂草型退化草地没有表现出地表裸露、植物蓄积量减少、水土流失等一般性退化特征，对该类草地的治理应区别对待；应用中科院研制的'灭狼毒'和'灭棘豆'分别在狼毒盛花期和黄花棘豆初花期，以1.05L/hm〓、1.35～165L/hm〓的施用量超低容量喷雾，毒草的死亡率可达到95％、92％以上；该技术具有工效高、选择性专一、灭效高、操作简便，对非靶标植物和其它动物安全，对环境无毒副作用的特点；采用喷施'灭狼毒'+短期禁牧措施，可以有效治理毒杂草型退化草地。

And own detecting equipment of all kinds all in readiness, annual output of 5 million pieces of screw whorl utensils, more than 300 kind industry sewing parts , the part product have partiality axis , eccentric cam , Ya Cha , connecting rod , heterotype document , axle sleeve , archives circle kind of all kinds of all kinds etc.

并拥有各类齐全的检测设备，年产螺钉旋具500万件，工业缝纫零件三百多种，零件产品主要有偏心轴、偏心凸轮、各类牙叉、连杆、各类异型件、轴套、档圈类等。

It was achieved by intradural microanastomosis of the L6 ventral root to S2 ventral root. After axonal regeneration, the "patellar ligament-spinal cord center-bladder" reflex pathway was reestablished. The function of the reflex arc was observed by nerve electrophysiological experiment, detrusor electromyography experiment, urodynamic testing and HRP retrograde tracing before and in 8 months after the spinal cord was destroyed horizontally between S1 and S4 level. There was one case of conical SCI patient who had L1 fracture and paraplegia was received intradural microanastomosis of the L6 ventral root to S2 ventral root after Li fracture and paraplegia.

将Beagle犬L6前根近端与S2前根远端在硬膜内显微吻合，经一段时间的轴突再生后，建立&膝腱－脊髓中枢－膀胱&人工反射弧，术后8个月，在破坏S1~S4脊髓节段前后分别进行神经电生理、膀胱肌电图及尿流动力学和辣根过氧化物酶逆行示踪等检查；对1例L1压缩性骨折伴截瘫患者行右侧T11与52前根经腓肠神经移植硬膜内吻合术。

Because the major seismic reflections have chronostratigraphic significance, and the isochronic correlation is relative, the seismic data may help us to correlate subzones of a nonmarine reservoir under certain conditions.

但是，由于主要地震反射同相轴具有年代地层意义，而且地层等时对比是相对的，因此，在一定条件下，利用地震资料可以进行陆相薄互层储层小层对比。

Upright stems bear sparse emergences and divide pseudomonopodially with the isotomous lateral branches.

具有根状茎，气生茎上着生有稀疏的刺状突起，假单轴分枝，侧枝等二叉分枝。

The propulsion shafting is subjected to the various dynamic factors when it is running, including hydro-oscillation force, ship hull'distortion, lubricative oil force and so on.

船舶在运行过程中，推进轴系会受到螺旋桨水动力、船体变形、润滑油膜等各种动态因素的影响。

The influences of mean stress, multiaxial stress and yield stress on the fatigue crack growth rate and the threshold value are analyzed.

分析了平均应力、多轴应力和材料屈服应力等对疲劳裂纹扩展速率和门槛值的影响。

To realize high speed cutting of tubing multispindle automatic machine,mechanically fixed hole boring cutter was designed.

为了实现管料多轴自动车床高速切削，设计了机夹镗孔刀，具有切削速度高、加工精度高、使用寿命长等特点，提高了轴承套圈的生产效率，降低了生产成本。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。