查询词典 stretching

The stretching influence on the near trusses should be considered when using the stretching-twice method, and the construction is hard to be controlled. The Harbin exhibition sports center with a 128m support span, attached to a deep design calculation of the super-large span prestress truss string structure, stretching once in tension bed method is brought forward for the bottom cable of the single truss string structure. From calculation research on the friction force between the tension bed and the truss string structure, the friction influence is considered for the displacement method of the middle of span, with the action of the fixed cable stress. This method, with vertical displacement of the middle of span as its main control target for prestress stretching, is successfully applied in the prestress stretching construction of the project.

二次张拉需考虑张拉对相邻桁架的影响，施工控制难度大，本文结合哈尔滨会展体育中心支座跨度128m的超大跨度预应力张弦桁架结构的深化设计计算，提出了单榀张弦桁架下弦拉索胎架一次张拉法施工方法，通过对张拉阶段胎架与张弦桁架间摩擦力的计算研究，定量索力下跨中位移法考虑摩擦力影响，以跨中竖向位移作为预应力张拉的主要控制指标，成功地完成了该工程预应力张拉施工。

The method includes the steps of gripping the peripheral edge of the fabric in a stretching assembly, activating the stretching assembly to stretch the fabric in a location adjacent to the mold assembly, clamping the stretched fabric against a face of the mold assembly, releasing the peripheral edge of the fabric from the stretching assembly, moving the stretching assembly from the path of the mold assembly, closing the mold assembly on the fabric with the peripheral edge of the fabric terminating in the mold cavity and injecting molten material into the mold cavity to form the frame directly on the peripheral edge of the fabric.

方法包括的步骤为在拉伸装置中夹紧纤维织物的外围边缘、在邻接浇模装置的位置启动拉伸装置来拉伸纤维织物、贴着浇模装置的面夹住已拉伸的纤维织物、从拉伸装置释放纤维织物的外围边缘、从浇模装置的轨迹移动拉伸装置、在纤维织物上闭合浇模装置并使同纤维织物的外围边缘终止在浇模空腔中和将熔化的材料注射到浇模空腔中以在纤维织物的外边缘直接形成框架。

The molecular motion of amorphous region at high-frequency was found to be hardly affected during the stretching processes. In summary, elongation has created major but different influences on the morphology and molecular motion of the aforementioned four series of polymeric elastomers. For those elastomers like natural rubber and poly , elongation has induced crystallization of the noncrystalline or the soft segments. The crytallinitiy and the crystal thicknesses increase monotonously during the course of the stretching; On the other hand, the stretching processes for those semicrytalline copolymers like EMA and POE are rather complex, including the formation of crystal at relatively low λand the destruction of the crystal at the utmost λ. It revealed that stretching process has resulted in a decreasing of the thicknesses and a shortening of 〓C T〓s for the orthorhombic crystalline components.

拉伸对上述四个弹性体体系的聚集态结构都产生了很大影响，但是影响的程度和内容因体系而不同，对于本身存在着化学交联或者是物理交联的体系而言，拉伸导致了其中本来难以结晶组分的结晶，且结晶度随着拉伸比增加而增加，与此同时，体系结晶的晶片厚度也会逐渐增加；而对于结晶性共聚物体系，如EMA和POE，结晶区本来起到了物理交联的作用，在这种情况下拉伸的影响变得比较复杂，拉伸对于不同晶型的影响有所不同，在拉伸比较低的情况下体系总体的结晶度会有所增加，说明有新的结晶产生，当接近或达到断裂伸长比时，体系的结晶度会突然降低，含量占优的结晶会被拉伸所破坏，含量较低的结晶在整个拉伸过程中受的影响较小。

A device and method for preparing compound nano fiber endless tow, which contains feeding material liquid to pair of electric spinning nozzle on frame, each nozzle respectively applied with high dc voltage with opposite polarity, each pair of nozzle jetting out nano fiber with opposite electric charge, said nano fiber attracting and colliding each other to form compound nano fiber, then forming nano fiber endless tow after drawing and stretching, the first opposite set pair of electric spinning nozzle jetted compound nano fiber endless tow is stretched down and used as acceptor which covered by the nano fiber jetted by second pair of nozzle an d forming two layers of compound nano fiber endless tow after drawing and stretching, in turn to get multilayer compound nano fiber endless tow after drawing and stretching by godet roller.

复合纳米纤维长丝束制备装置及其制备方法是一种简单、高效电纺制备纳米纤维长丝束的方法，其步骤为将料液输送给支架(3)上的电纺喷头对(1)；喷口相向的电纺喷头对(1)的每个喷头分别施加相反极性的直流高电压；每对相向喷口喷出分别带相反电荷的纳米纤维，并在空中相互吸引、碰撞形成复合纳米纤维，经牵引、拉伸后形成复合纳米纤维长丝束；第一对相向放置的电纺喷头纺丝形成的复合纳米纤维长丝束向下拉伸，并作为接受体与第二对电纺喷头喷出的分别带相反电荷并相互吸引的纳米纤维在空中相遇，被第二对电纺喷头喷出的纳米纤维包裹，经牵引、拉伸后形成两层复合纳米纤维长丝束；依次类推，最后经导丝辊对(2)牵引、拉伸后得到多层复合纳米纤维长丝束。

In this paper, changes of cuticle layer and epicuticle structure after stretching or stretching—setting treatment of wool and hair fiber are also analyzed by means of cuticle superficial structure observation through SEM, A1l w〓rden reaction, all amino-acid analysis and infrared spectrum studying, and on this account, inquiring firstly into the mechanism of modification of wool and hair fiber by stretching.

本论文通过电镜观察鳞片层结构、阿尔瓦登反应、氨基酸含量分析及红外光谱研究等方法分析了拉伸及拉伸—定型处理后鳞片层及鳞片表层结构的变化，并以此为主要切入点，创意性地探讨了毛发拉伸改性机理。

At the same time, the cooperation of the multi-layer frame structure is researched with FEA when the pre-stressed threads are stretching, and the relationship between the beam of stretching layer and the beams of nearly layers is discussed. The layout effect of regular reinforcement in the beam on the pre-stressed effective quantities is also analyzed, and the elementary estimation formula of pre-stressing loss on the multi-layer frame is also deduced according to the pre-stressing loss of one-layer pre-stressed frame structure.

同时文中还运用有限元对多层框架结构在预应力张拉过程中，某层梁预应力的张拉与相邻层梁的影响关系和结构各构件的整体协同工作做了研究，分析了非预应力筋在梁中的配置对框架梁预应力有效量的影响；并且在一层框架梁侧限预应力损失的基础上，扩展了多层框架结构中侧向约束引起梁的预应力损失值的初步设计估算公式。

Measurement of the deformation quantity of a material during stretching process by using linear CCD detectors in non-contact mode, not only is more objective than the common extensometer measurement method, but also can measure the whole process from stretching deformation to breaking .

用线阵CCD作为光电传感器非接触测量材料拉伸过程中的变形量，不但比常规的引伸计测量的方法更客观，而且可以测量材料拉伸变形到断裂的全过程。

You can slow down your aerobic activity or walk slowly for 5-10 minutes after aerobic activity to cool down. The cooldown should end with stretching. Again, the stretching includes neck rotations, shoulder rolls, arm swings, gentle knee bends, and ankle rotations. Your stretches should be smooth, fluid movements. As you do in yoga, you can hold a stretch, but do not make jerky, sudden movements or bounces.

你可以在有氧运动最后逐步放缓或散步，大概5－10分钟就可以放松下来，放松最后可以做个伸展的动作，这个伸展要包括颈部、肩部、手臂、膝关节和脚踝这些部位的环绕伸展放松，要缓缓的流畅的来做，就像瑜珈运动中一样，要逐渐伸展开，不要做的太突然，不要突然的动或跳。

Observe the latent period of the stretching reaction and record the number of stretching in 15 min.

注射醋酸后，观察出现扭体反应的潜伏期及15min内的扭体次数。

The impact of critical technology parameters which were cooking temperature?cheddar pH and stretching temperature on full fat Mozzarella cheese textural properties(TPA Hardness?TPA Cohesiveness?TPA Springness)and functional properties(Meltability?Free oil)was studied in this peaper by using currency three factors quadratic rotation design. It came to the conclusions that TPA Hard and Free Oil were increased properly with cooking temperature increased,the formation of free oil was increased with stretching t...

采用三因素二次通用旋转组合设计，研究热缩温度、堆酿pH、拉伸温度等关键工艺参数对全脂Mozzarella干酪的质构特性和功能特性的影响规律，结果表明提高热缩温度可增加干酪硬度及干酪的油脂析出性；提高拉伸温度也可增加干酪的油脂析出性；堆酿pH对干酪的弹性有较大影响，随着堆酿pH的降低，干酪的弹性增大，并与热烫拉伸温度之间有交互作用，即低的堆酿pH和高的拉伸温度时干酪的弹性大。

For every one of my New Year resolutions, I have been a backslider for years.

说到我的新年决心，我每年都做

With empathy and focus on a feeling level, we can all relate to the common ground of mutuality of emotions.

有了同情心和感觉上一级的重点，我们都可以涉及到相互的情感共同点。