要点在于这个基础设施是弹性的，可以根据需求扩展和收缩。
A key point is that the infrastructure is elastic and can scale up and down based on demand.
有上述公式可知，加速度取决于弹性系数和弹簧(即汽泡纸)收缩的距离。
So the acceleration depends on the value of the spring constant as well as the distance the spring (bubble wrap) is compressed.
优点：耐磨性佳、防滑、有弹性、不易断裂、柔软度较好、伸延性好、收缩稳定、硬度佳、弯曲性好。
Advantages: good abrasion resistance, anti slip, elasticity, not easy to break, softness, good stability, extended contraction, good hardness, good bending.
膜盒，内含低压空气的密封弹性装置。当它周围的压力变化时，会膨胀或收缩。
ANEROID, a sealed flexible device containing air at low pressure, which expands or contracts during change of pressure outside the device.
通过分析，认为PTT弹性长丝包芯纱线及短纤维混纺纱线的筒子染色关键，是使其充分收缩，以达到适宜弹性；
This paper introduces the key step of fully shrinking for suitable elasticity in cheese dyeing of PTT filament core-spun elastic yarn and staple blended yarn.
这使陷阱收缩，储存了弹性能量，就像拉弯了的弓一样；同时在其内部产生压力，就像橡胶推压注射器一样。
"This deflates the trap and stores elastic energy, like the stored energy in a bent bow, and also generates a depression inside, like with a rubber pipette," Marmottant explained.
研究表明：粉煤灰通过改变胶凝材料体系水化速度、徐变系数、弹性模量，可以有效抑制早期混凝土的自收缩。
The research shows that fly ash could restrain early autogenous shrinkage by changing the parameter of binder, such as hydrated velocity, creep coefficient, elastic modulus and so on.
利用弹性理论。给出了薄壁圆筒纵向焊缝的横向收缩引起的应力与变形的定量解答。
According to elastic theory, this paper gives quantitative answers of stresses and deformations caused by the lateral contraction of longitudinal welding seam on the thin wall's cylinder.
介绍了弹性针织物产生干收缩的原因及热力学的、化学的和与时间有关的参数对弹性针织物干收缩的影响。
The causes for dry shrinkage of elastic knit are described. The influences of thermodynamic, chemical and time-relative parameters on dry shrinkage of elastic knit are analyzed.
讨论了弹性波多普勒效应的叠加性质，并指出相对论的时间膨胀和长度收缩对弹性波多普勒效应的影响。
The superposition property of elastic wave's Doppler effect and the influence of relativistic time dilation and length contraction on elastic wave's Doppler effect are also discussed.
且证明了PBT/PET并列型复合纤维经假捻变形后其卷曲度、卷曲收缩率、卷曲模量、卷曲稳定性处于最佳状态，经机织后织物的弹性可达23％以上。
After false texturing the degree of crimp, crimp contraction, crimp modulus and crimp stability of PBT/PET fiber are all in the optimum condition, the elasticity of its woven fabric can be over 23%.
主要研究了不同弹性模量的钢纤维、聚丙烯纤维和聚丙烯腈纤维混杂对水泥混凝土的干燥收缩性能的影响。
In this paper, the effects of the steel fibers of different elastic modules, polypropylene fibers and polyacrylonitrile fibers on the dry shrinkage of concrete are studied.
优良的弹性，由于纤维处于预压缩状态，其膨胀可补偿纤维收缩，提高纤维炉衬的绝热性能。
Excellent tensile, because the ceramic fiber is in pre-compressed state, the expand can compensate the shrinkage of ceramic fiber, and improve the heat insulation.
收缩和徐变是混凝土作为粘弹性材料的一种固有的时变特性。
Shrinkage and creep are the inherent time-dependent characters of concrete which belongs to a viscoelastic material.
通过沸水收缩率、干热收缩率、卷曲度、卷曲弹性率等一系列测试方法讨论了不同拉伸温度的CDP - FDY纤维热处理后的收缩和卷曲性能。
The shrinkage and crimp behavior of CDP-FDY fibers at different drawn temperature after heat treatment are studied by means of boiling water shrinkage, hot shrinkage, crimp ratio and crimp rigidity.
本文结合工程实际，用混凝土弹性理论对温差收缩引起的裂缝进行分析，并提出预防和处理措施。
The shrinkage cracks caused by difference in temperature are analysed using elasticity theory and relating to project practices, and the prevention and treatment measures are proposed in the paper.
至于快要形成皱纹的部分，更因肌肉收缩、增强弹性，从而防止皱纹的产生。
As part of going to the formation of wrinkles, but also due to muscle contraction, enhance flexibility, and thus prevent the emergence of wrinkles.
结果表明：拉伸温度高的CDP纤维的收缩率、卷曲度低，而卷曲弹性率高；
It is shown that the shrinkage, crimp ratio of CDP-FDY fibers reduce and the crimp rigidity increase with the increasing drawn temperature.
本文用一个粘弹性流变学模型来模拟股四头肌作等长收缩时的松驰过程。
A viscoelastic rheological model was proposed to simulate the relaxation process of isometric knee extension.
目的比较老年正常血压者、单纯性收缩期高血压(ish)与非单纯性收缩期高血压(NISH)患者的动脉弹性功能，了解不同类型老年高血压大动脉和小动脉弹性的差别。
Objective To evaluate the elastic function of large and small artery among the health subjects, the patients with the different type of hypertension in the elderly, ie ISH and NISH.
天空清明，好像有弹性似的挂在上面；看来夏天的天空，经过坚贞的寒冬加以提炼、加以收缩之后，所有的杂质都被筛到地上，现在的天空是经过净化的了。
A pure elastic heaven hangs over all, as if the impurities of the summer sky, refined and shrunk by the chaste winter's cold, had been winnowed from the heavens upon the earth.
以氨纶裸丝为例，介绍了氨纶织物半成品的检测要点，即目前常用的沸水收缩率和弹性回复率。
Illustrated the uncovered polyurethane fiber as an example, the popular detecting points for semi products are given, such as the shrinkage in boiling water and elastic recovery.
心脏的收缩和舒张功能与心肌弹性密切相关。
Systolic function and diastolic function of heart are in close relationship to the elasticity of heart.
随着流体弹性的增加，在收缩孔道中产生了涡流，涡流的强度与弹性的大小成正比。
With the increasing of elasticity of fluid, the turbulence in shrink hole comes into being, whose intensity is in direct proportion to elasticity.
CDP - FDY纤维的干热收缩率、卷曲度、卷曲弹性率均随热处理温度的上升、时间的延长而提高。
At the same time, the hot shrinkage, crimp ratio and crimp rigidity increase with the increasing heat treatment temperature and time.
本实用新型弹性好，能随身伸长或收缩，穿着合身、美观大方、行动自如，重量轻，保暖性能优良。
The utility model provides the advantages of good elasticity, being able to stretch, fitted wearing, elegant appearance, freedom of movement, small weight, and good warming performance.
绝缘软套管。第3部分：各种型号套管规范。活页233：阻燃、耐流体、收缩比2：1的热收缩氟弹性套管。
Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving - Sheet 233: Heat-shrinkable fluoroelastomer sleeving, flame retarded, fluid resistant, shrink ratio 2:1.
一经放入适当位置，就冷却成型或成膜，成为收缩性很小的坚固的弹性体。
Add the appropriate place once, on cooling forming or film-forming, becoming a very small contraction of the solid elastomer.
通过对混凝土依时的自收缩应变和弹性模量测定，求得依时自收缩应力。
On the basis of measurement of time-dependent auto-shrinkage strains and elastic modulus of concretes, the time-dependent auto-shrinkage stresses may be calculated.
PET收缩膜是一种高性能的定向热可塑性弹性体的复合材料。
E-PET shrink film is high performance oriented composite of thermoplastic elastomers.
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