副丝

The fishes which dwell therein are quaint and strange; their huge heads, prodigious jaws, and long tails and tentacles are, as it were, gross exaggerations of the common and conventional forms. We look in vain for any purposeful cause or physiological explanation of these enormities; and are left under a vague impression that life has been going on in the security of all but perfect equilibrium, and that the resulting forms, liberated from many ordinary constraints, have grown with unusual freedom.

生活在深海的鱼类长得很奇特有趣，它们有巨大的头，很大的嘴巴、很长的尾巴与触角，长得就是一副标准的夸张模样，我们无法给予这些奇特夸张任何果断的原因或生理上的解释，只能对於这些生命在几近完美平衡的安全中持续，以及从一般限制中解放并独特自由生长的形体，徒留一丝模糊的印象。

Here Alice put out one of her dear mother's looks too tender to be called unbraiding.

听到这里，阿丽丝不觉微含嗔容，完全是她妈的一副神气，只是温柔有余，愠怒不足。

The influence factors of ball screw pair friction moment are analyzed, and a method to measure the friction moment is given.

分析滚珠丝杠副摩擦力矩的影响因素，并给出一种测量摩擦力矩的方法。

Including the transmission system design, selection of ball screw assembly, servo motor, precision and stiffness checking, etc.

包括传动系统总设计，滚珠丝杠副的选择，伺服电动机的选择，精度和刚度验算等。

Its basic structure from the main arm, the Deputy rocker, the main motor, spindle and compression devices, column, rocker base, motor and screw off and landing, handrails and so on.

其基本结构由主摇臂，副摇臂，主电机，主轴和加压装置，立柱，摇臂基座，升降电机及丝杆，扶手等组成。

Mainly include to roll the ball screw shaft nut and the calculation choice of reaction stepping motor and the establishment of lengthways, horizontal organization assemble diagram project.

主要包括对滚珠丝杠螺母副及反应式步进电机的计算选择及纵向、横向机构装配图方案的制定。

The possiblehost objective reason all is very many, but, our country numericalcontrol engine bed function part development backwardness -- varietyfew, unit technical level low, performance quality insufficientlystable, the cost stays at a high level, the delivery insufficientlywas prompt and so on -- not to be able to satisfy the numericalcontrol engine bed main engine product need to develop, had noalternative but to say was most direct, the most main reason, Becauseall numerical controls engine bed all is by each kind of function part(including host 轴头, straight line rolls guide rail, ball bearingguide screw vice-, numerical control tool rest, knife storehousemanipulator, rotary table, numerical control servosystem, surveyfeedback as well as safe protective equipment and so on), the functionpart which on foundation rack and so on the lathe bed, column thecollection attire becomes is the numerical control engine bedimportant component, moreover is the indispensable part.

可能主客观原因都是很多的，但是，我国数控机床功能部件的发展落后──品种少，单元技术水平低，性能质量不够稳定，成本居高不下，交货不够及时等──满足不了数控机床主机产品发展的需要，不能不说是最直接、最主要的原因，因为所有的数控机床都是由各种功能部件（包括主轴头、直线滚动导轨、滚珠丝杠副、数控刀架、刀库机械手、回转工作台、数控伺服系统、测量反馈以及安全防护装置等）在床身、立柱等基础机架上集装而成的，功能部件是数控机床的重要组成部份，而且是不可或缺的部份。

This thesis also improves the algorithm of iterative calculation of direct kinematics on two aspects. One is to solve the "floating" problem, which is the change of the leg lengthes when nuts of ballscrews rotate around their own axises.

通过对几类关键受限变量——杆长、关节摆角、倾倒角和旋转角进行相关运动学计算，实现对它们的限位约束；同时，针对因滚珠丝杠螺母副引起的杆长随角度变化而&浮动&的特殊问题，对正向运动学迭代算法进行改进，加快了收敛的速度； 3。

The genetically altered mice, however, had the same reaction when placed in the altered cages, while their normal compeers showed nary a trace of fear.

但是，当放进笼子里时，只有基因突变的小鼠还是一副发呆的模样，而正常的小鼠却连一丝害怕都没有。

High-speed feed may Ball screw, sport, high efficiency, small heat, so can achieve high-speed feed.

高速进给可能滚珠丝杠副由于运动效率高、发热小、所以可实现高速进给。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。