Expansion and contraction of blood vessels of normal blood flow is essential.
血管的扩张和收缩对血液的正常的流动是必需的。
Cleland likened its expansion and contraction to the inflation and deflation of a balloon.
克莱兰德将其放大和收缩比喻为气球的膨胀和缩小。
The performance study on elastoplastic materials of expansion and contraction of bridge and culvert;
针对这种缺陷，应选择优良的伸缩缝弹塑体材料。
The expansion and contraction which most substances undergo on changing temperature is familiar to us all.
多数物质温度一变化就会产生膨胀或收缩，这是我们大家所熟悉的。
The bridge expansion and contraction installation is one of the important accessory structures of the bridge.
桥梁伸缩装置是桥梁工程的重要附属结构，影响桥梁舒适和成本。
To be supportive, put metal straps on both long and short sides and reserve space for expansion and contraction.
长边、短边请加金属压条，并预留膨胀空隙，加强固定力量。
The change of ore occurrence is the result of ore expansion and contraction, and branch recombination and thinning out.
指出矿体产状变化是矿体膨胀收缩、分支复合和尖灭再现的结果。
Therefore the object is to produce the phenomenon of thermal expansion and contraction of the premise of thermal stress.
因此，物体热胀冷缩现象是产生热应力的前提。
On top of cooked flavors, the expansion and contraction of the liquid inside the bottle might push the cork out or cause seepage.
葡萄酒体积在瓶内的膨胀或收缩，除了会使葡萄酒的口味过熟外，还可能把软木塞挤出，造成空气渗入。
At least one flexure joint is provided in the grating mount which permits thermal expansion and contraction of the substrate.
在光栅固定件中至少设置一个挠曲连接部，它允许基片热膨胀和收缩。
The author applies generalized variational methods to calculate the additional expansion and contraction forces of CWR on bridge.
用广义变分法来计算桥上无缝线路附加力，提出了研究桥上无缝线路附加力计算的新方法。
So while we still have expansion and contraction, all of the components expand and contract at the same rate relative to one another.
于是哪怕仍存在热胀冷缩的现象，所有的部件发生这一现象的比率都是相同的。
The invention relates to a sealing cup which is easy to open with a cup cover that is hard to open for heat expansion and contraction.
本发明涉及一种容易开启密封水杯因热胀冷缩杯盖很难开启的杯盖的水杯。
The displacement allowance design for structural members can effectively avoid expansion and contraction caused by temperature difference.
通过结构件预留位移设计，有效地避免了由温差引起的热胀冷缩问题。
Humans have always held records of each creational experience that has ever been known in all 150 expansion and contraction cycles of the Tao.
人类一直保管着在道所有150个扩展和收缩周期内曾经已被了解的、每一创造性体验的记录。
The welted joint, executed in this way, is a rapid means of jointing and effectively allows for expansion and contraction of the metal covering.
这种新方法需要一种专门的高效率的机械装置。对接坡口焊是一种连接迅速的施焊工艺，它可以有效地保证金属盖板的胀缩。
One of them is Spire, a stonelike device that clips to a belt or bra and senses the expansion and contraction of the chest cavity during breathing.
Spire就是其中之一。这种小装置零售价为149.95美元，形状好像一块石头，可以别在皮带上或卡在文胸上，感知呼吸时胸腔的扩张和收缩。
A drawing draws drive shear fork expansion and contraction lifting gearing forms from shear fork column, block, alachlor and drawing draw drive gear.
牵拉驱动剪叉伸缩升降机构由剪叉列、滑轮、拉索和牵拉驱动机构等构成。
Construction quality of Maurea expansion and contraction joint of bridge directly affects the service level and driving comfortability of highway bridge.
桥梁毛勒缝的施工质量直接影响公路桥梁的服务水平和行车的舒适性。
By adopting the expansion and contraction property of the thermo-sensitive wax, the temperature control valve controls opening and closing of the valve core.
它采用热敏蜡的热胀冷缩性能来控制阀芯的开启与关闭。
As a general rule, solids can expand and contract too. But the coefficients of expansion and contraction of solids are on the whole smaller than those of liquids.
和固体、液体相区别的一种状态：相对低的密度和粘性，在相对高的扩张和压缩性。
The column USES the double expansion and contraction function hydraulic cylinder, increases the power stroke to satisfy the support to adjust the high scope the need.
立柱采用双伸缩作用液压缸，以增加工作行程来满足支架调高范围的需要。
This paper studied the mechanical properties, expansion and contraction and road performance of backfill material made by waste gypsum from TiO 2 production and fly ash.
通过对钛石膏-粉煤灰复合路基回填材料的物理力学性能、胀缩性及路用工程性能的试验研究，探索了钛石膏-粉煤灰回填材料的工程性质和性能。
The terrain where Phoenix set its three legs is relatively flat with polygon-shaped patterns in the ground likely caused by the expansion and contraction of underground ice.
菲尼克斯放置三个支架的地形相对来说比较平坦，地面上多角形图案看起来好像是由于地下永冻土的扩张和收缩形成的。
It promotes our heart and lung function by increasing their expansion and contraction, which is beneficial for resisting pressure from longtime labor or extra-strength work.
做有氧运动可增加心肺的伸缩，以提高心肺功能，有益于抵御长期的劳作和加班带来的压力。
As the spray coating line is in the non-linear distribution, the stress of a spray coating material due to thermal expansion and contraction can not deform the filling structure.
由于喷涂线呈非直线分布，喷涂材料热胀冷缩产生的应力不会导致填充结构变形。
As the spray coating line is in the non-linear distribution, the stress of a spray coating material due to thermal expansion and contraction can not deform the filling structure.
由于喷涂线呈非直线分布，喷涂材料热胀冷缩产生的应力不会导致填充结构变形。
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