The innermost level consisted of lower level practices such as pair programming; coding standards; unit and function testing; refactoring; simple design; and the40-hour week. 最内层的级别包括比较底层的实践,比如结对编程、编码标准、单元测试和功能测试、重构、简单设计,以及每周工作40小时。
The findings were as follows: ( 1) The body weight, weight gain and feed efficiency value of high dietary zinc group ( ZH) were significantly lower than those of pair fed group ( PF). 结果表明:(1)ZH组的体重、体重增长值、饲料效价均非常显著低于配对(PF)组;
Basic Types and Its Evolvement of the Planar Five-bar Mechanism With Lower Pair 平面低副五杆机构的基本型及其演化
According to the simulation results, the torque fluctuation can cause the stronger vibration within some speed range, at same time, the separation phenomenon of lower speed gear pair takes place and higher dynamic loads are caused. 仿真结果表明,在某些转速区段,转矩激励会导致强烈振动;在低速齿轮对中,可能同时伴随脱齿现象,并导致较大的动载荷。
The Type Survey of the Plane Lower Pair and Four Link Gear 平面低副四杆机构的类型综述
Unidirectional overrunning clutch with dual-wedge-block lower pair 一种双楔块低副单向超越离合器
The smaller the axial tolerance of bear is, or the lower the hardness of material making of friction pair is, the lower the peak contact pressure will be. 轴承摩擦副材料硬度越低,相应的峰值接触压力越低。
It has a systemic induction to the assortment of the plane lower pair and four-link gear, and give some application instances. It proffers a basis for the molding designing of the mechanism. 对平面低副四杆机构的分类进行系统的归纳,并给出了应用实例,为机构的造型设计提供基础。
Experiments show that the friction coefficient and wear rate between surface treated tubing or surface treated rod is lower, and the pair possess better wear resisting performance. 试验证明,经喷涂工艺处理的管与抽油杆进行摩擦时,耐磨性能较好,摩擦系数与磨损率都较低。
The traditional method of a higher pair replaced by lower pairs is proved to be able to guarantee the mechanism with higher pair and its equivalent lower pair mechanism have the same freedom, instantaneous velocity and instantaneous acceleration. 证明了机械原理中传统的高副低代方法可保证此高副机构和它的低副替代机构自由度不变、瞬时速度和瞬时加速度不变。
Aiming at the characteristic of poor dynamic-power, additional dynamic load and speed fluctuation of the higher pair Overrunning Speed Clutch, we put forward a new lower-pair Differential and Double Brake-block Overrunning Speed Clutch, and introducing the process of its evolution. 针对目前广泛使用的高副式(如滚柱式)超越离合器承载能力低、工作稳定性较差的缺陷,介绍了新型低副差动双制动块式超越离合器的演化过程。
Aimed at small products with small batch and thin material, considering to lower die costs, a pair of simple progressive punching die is designed. 针对批量小、材料薄的小型产品,考虑到尽量低的模具成本,设计出一副简单的级进冲裁模。
The main idea of the paper is to build MATLAB dynamic simulation model of all kinds of lower pair mechanism by cell of basic bar groups. 其主要目的是以组成机构的杆组为仿真模块,搭建各种平面连杆机构MATLAB仿真模型,可以对各种低副机构进行动力学仿真和分析。
A new clutch is put forward& unidirectional overrunning clutch with dual-wedge-block lower pair. 提出了一种新型超越离合器&双楔块式低副单向超越离合器。
The lower active species should be covalent and tightly bound ion pair in hexane and external solvation ion pair in mixtures of hexane and THF. 这种低活性形态在正己烷中可能是共价键结构和紧密离子对,在正己烷/THF混合溶剂中可能是外溶剂化离子对。
Research on kinds of four links with lower pair 平面低副四杆机构种类研究
The lower and upper bounds of tree edit distance were used to optimize the approximately duplicated data detecting algorithm. The improved algorithm can avoid computing the tree edit distance that is not needed between a pair of XML data, and reduce the approximate computation complexity. 采用树编辑距离的上下限优化基于树编辑距离的相似检测算法,避免了不必要的树编辑距离计算,降低了相似检测计算的复杂度,提高了运算效率。
Some properties of the upper approximation and the lower approximation are generalized by set pair analysis. 然后用集对分析的方法得到了变精度的上、下近似的性质,将经典粗糙集理论和集对粗糙集理论进行了推广。
We study the effect of secondary struc-tural elements by considering much lower pair contact energy in secondary structure like elements with HP lattice model. 利用HP格点模型,我们考虑处在类二级结构元中的接触对具有更低的能量来研究二级结构对折叠的影响。
Transmission performance and minimum transmission angle position is analyzed by using of lower pair equivalent mechanism of swing movable teeth. 基于摆动活齿传动的低副等效机构,对其传动性能进行了研究分析,确定最小传动角位置。