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straightness     
相关语句
  直线度
     The accuracy of the system is 1μm for the straightness measurement in the range of±800μm, and 3" for angular error measurement in the range of±600".
     实验结果表明,直线度测量精度在±800μm的范围内达到了1μm,角度测量精度在±600"的范围内达到了3"。
短句来源
     Optoelectronic method for measuring the straightness of the bore with a diameter of 25 mm
     Φ25mm火炮身管直线度光电测量方法
短句来源
     Development of PSD Laser Straightness Tester
     PSD激光直线度测量仪
短句来源
     Long Range Straightness/Coaxiality Measurement System Using Dual-frequency Laser
     双频激光远程直线度/同轴度测量系统
短句来源
     Scheme and Error Analysis of Generatrix Straightness Measurement for Deep Holes with EST
     EST法测量深孔母线直线度的方案及其误差分析
短句来源
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  平直度
     Study on Fatigue Crack Front Straightness in CTOD Weld Specimen of Metallic Thick Plank
     金属焊缝CTOD试样疲劳裂纹前沿平直度研究
短句来源
     Application of the Laser Straightness Meter in the Rail Production in Panzhihua Iron and Steel Company
     激光平直度仪在攀钢钢轨生产中的应用
短句来源
     The machine has such advantages as simple structure,convenience to adjust and good straightening effect,it can meet the needs of consumers for steel wire's straightness.
     该旋转矫直设备结构简单 ,调整方便 ,矫直效果好 ,能满足用户对钢丝平直度的要求
短句来源
     Also possesses practical application significance for drawing up measure standard of straightness and flatness as well as inproving accuracy of engineering measurement.
     对平直度测量标准的制定以及提高工程检测准确度有实际应用意义。
短句来源
     In order to develop the high-speed rail with high dimension precision and high straightness, combining with the problems when producing rails at present, we have optimized the rollpass's parameter designed the structure of mill guide, developed new rolling adjusting technology, researched the relation of each part of rail head and optimized the rolling quantity of each rollpass at the finished mill , and have produced a great number of rails which attained the certificate of 200km/h high-speed rail.
     本文针对高速铁路用钢轨高尺寸精度、高平直度的轧制特点,结合现有重轨生产存在的问题,从孔型参数优化、导板结构设计开发、轧制调整技术开发、头部形状对应关系研究及轧制过钢量优化等方面开展工作,生产出了满足时速200km铁路需要的钢轨。
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  直线性
     The sperm motion parameters such as linearity( LIN), straightness( STR) were significantly lower than those in the external control group(P < 0.05), while the abnormal rates of seminal volume increased compared with the external control group( P < 0.01).
     暴露组精子直线性(LIN)、精子前向性(STR)均显著低于外对照组(P<0.05),精液量异常率显著高于外对照组(P<0.01);
短句来源
     We utilized sperms selected by ‘swimup’ method and computer aided sperm analysis (CASA,HamiltonThorn) to study the effects of the IGFs and IGFBPs on sperm motility parameters in vitro curvilinear of velocity (CV),progressive velocity (PV),Linearity (Ln),straightness (St),amplitude of lateral head movement (ALH), and beat frequency (BF).
     本文使用上泳法优选精子,并应用计算机辅助精子分析技术(CASA)研究IGFs 和IGFBPs 对体外精子活动参数的影响,如:曲线速度(CV)、直线速度(PV)、直线性(Ln)、前向性(St)、精子头侧摆幅度(ALH)和鞭毛摆动频率(BF)。
短句来源
     Sperm motion parameters in the exposure group such as linearity(LIN),straightness(STR), and the sperm count were decreased significantly, and the abnormality rate of viscidity, coagulation and sperm count were increased significantly as compared with the internal and the external control groups( P <0.05).
     暴露组精子总数、精子运动直线性 (LIN)、精子运动前向性 (STR)均显著低于内、外对照组 (P <0 .0 5 ) ; 精液粘稠度、凝集度及精子总数异常率显著高于内、外对照组 (P <0 .0 5 ) ;
短句来源
     Result:The sperm density,motility,progressive percent,path velocity (VAP),progressive velocity (VSL),track speed(VCL) and amplitude of lateral head displacement (ALH) of uremic patients were significantly lower than those of normal volunteers(P< 0.01 ), but there were no differences between two groups(P> 0.05 )among the beat cross frequency(BCF),straightness(STR) and linearity(LIN ).
     结果 :尿毒症患者的精子密度、活动率、前向运动率、平均路径速度、直线速度、曲线速度及精子头侧摆幅度与正常男性比较差异有统计学意义 (P <0 .0 1) ,而尿毒症患者的精子鞭打频率、前向性、直线性与正常男性比较 ,差异无统计学意义 (P >0 .0 5 )。
短句来源
     Specially,a newway of measuring slideway straightness is raised,it reduces the principle error in the measurement way to the degree that can be ignored completely.
     提出了测量导轨直线性误差的新方案,使测量方法的原理误差降低到完全可以忽略不计的程度。
短句来源
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  伸直度
     Analyses on Influence Factors and Determine Methods of Fiber Straightness
     纤维伸直度的测定方法及影响因素分析
短句来源
     The enhancing of semi-finished goods evenness and fiber straightness has significant effect to improve yarn quality.
     提高半制品条干均匀度和纤维伸直度,对改善成纱质量效果显著。
短句来源
     The relation between drawing quality and yarn quality is positive correlation. Except main function of drafting and twist,roving process has the function of improving fiber straightness and yarn structure.
     并条质量与成纱质量呈正相关关系,粗纱的主要作用除牵伸、加捻外,还有改善须条内部纤维伸直度及纱条结构的作用。
短句来源
     Abstract According to fibre straightness and evenness of semi-product,evenness and weightness CV% ofyarn data test and long-term production & test data,the writer points out that drawing process assignments are different in carding system and combing system,due to different process lines.
     本文根据半制品纤维伸直度、条干均匀度及成纱条干均匀度、重量CV%值试验及长期生产实验资料,提出普梳系统与精梳系统,由于工艺流程不同,并条工序的任务也不同。
短句来源
     Analysis on Sliver Parallel Straightness and Reducing Processes in Open-end Spinning
     棉条平行伸直度与转杯纺缩短工艺路线分析
短句来源
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  straightness
The results gave assurance to the straightness of the laminate since the calculated strains have the same value throughout the thickness.
      
The new parameters (especially trajectory straightness) allowed the ability to learn to be discriminated from decreases in mobility, including mobility losses due to study agents, in the Morris water test.
      
The directivity of platform search trajectories was assessed quantitatively using a new parameter - trajectory straightness.
      
Measuring straightness of inside and outside taper generatrices
      
Laser interferometric measurement of deviation from straightness
      
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In the development of the power rice transplanter in our country a single steel traction wheel is usually used. However, the small multi-purpose carriers or walking tractors are equiped with two traction wheels to meet the most of the field operations. Consequently, it would be more ideal if the rice transplanters can also be trailed by the carrier with two traction wheels.The straightness of travel, tractive performance and the turning on headland in operation of the aggregate has been tested in the paddy...

In the development of the power rice transplanter in our country a single steel traction wheel is usually used. However, the small multi-purpose carriers or walking tractors are equiped with two traction wheels to meet the most of the field operations. Consequently, it would be more ideal if the rice transplanters can also be trailed by the carrier with two traction wheels.The straightness of travel, tractive performance and the turning on headland in operation of the aggregate has been tested in the paddy field and discussed in this paper.The horizontal force on the small carrier equipped with rice trans-planter has been analysed and an aquation of motion of the aggregate has been deduced in order to find a method to improve the straightness of travel of the aggregate.Furthermore, through the analysis of the tractive performance and the steera-bility in turning on the headland, some reasonable parameters of the carrier wheels and a proper type of steering clutch as well as the travelling path of the aggregate on the headland are proposed.On the basis of the force and kinematics analysis as well as the field test, a prototype has been designed and constructed.The field test showed desirable straightness of travelling and check-row features which are fulfilling the agronomic require-ments.

我国的机动插秧机在发展过程中人们认为:采用独轮牵引式好。但是多用小底盘及手扶拖拉机多数作业为双轮,故希望配插秧机时也能双轮牵引。 文中介绍了双轮牵引插秧机机组运动过程中的行驶直线性,牵引附着性和田头转向问题。 通过对机组的受力和运动分析,推导出了底盘和插秧机的运动方程式,找出了提高行走直线性的途径。 通过对机组田头回转的附着性和转向性分析,找出了合理的行走轮参数和转向离合器的型式,并提出了机组在田头运行的路线。 根据研究的成果,设计的丰收-4型多用小底盘经田间试验表明其行走直战性能满足农艺要求并且靠行顺利。

This paper analyses in detail the accepted calculation method of the error limits in measuring straightness to be assessed from the straight line which joins two end points on the measuring line; points out and has emended several fallacies;and furthermore, complements two new points of view to improve this method. Based on this, the formulas for calculating, according to the minimum condition, the measuring error limits of straightness have been derived.

本文详细分析了习用的按两端点连线评定直线度极限测量误差的计算方法,指出并修正了该法的错误之处,并进一步补充了二个新的观点,完善了该项计算。在这基础上,推导出了按最小条件评定直线度的极限测量误差的计算式。

"Spatial Straightness" is usually measured with an internal focusing alignment telescope. But it cannot ensure the same accuracy for both far and near test points. This paper intends to solve the problem of similar measuring accuracy and imaging quality for both test points. That is, to provide similar magnification, aperture angle, theoretical resolution and illumination in image plane, and to eliminate focusing errors and attain required imaging quality. In this paper an afocal system serves as the objective...

"Spatial Straightness" is usually measured with an internal focusing alignment telescope. But it cannot ensure the same accuracy for both far and near test points. This paper intends to solve the problem of similar measuring accuracy and imaging quality for both test points. That is, to provide similar magnification, aperture angle, theoretical resolution and illumination in image plane, and to eliminate focusing errors and attain required imaging quality. In this paper an afocal system serves as the objective lens in the "Equi-accurate test system". For illustration, a prototype instrument is developed.

在机械制造业中,常有一系列孔的中心组成的直线,称之为“空间直线”。多用内调焦式测微望远镜对其进行检测。但是对于远、近测试点不能有相同的成象质量和测量精度。本文试图解决这种“空间直线度”测量中对远、近测试点具有相近的测量精度和成象质量问题,即对远测试点和近测试点具有相同的倍率、孔径角,同时有相同的理论分辨率和象面照度,消除调焦误差,具有合格的成象质量。文中以一个无焦系统作为物镜,构成“等精度测量系统”,并研制成功仪器作为例子,说明无焦系统的应用。

 
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