time contraction

Methods: To assess mitral ( tricuspidal) annulus of free walls of 45 persons. Atrial and ventricular electromechanical delay time, atrial contraction time, PR interval were acquired in tissue Doppler velocity cure.

方法：评价45例正常人的左室侧壁、右室游离壁的瓣环，在组织速度曲线上测量心房和心室的电-机械延迟时间、心房收缩时间以及PR间期（PRTV）。

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To observe the change of atrial electromechanical time, contraction time and its dispersion in patients with paroxysmal atrial fibrillation ( PAF), two dimensional echocardiography ( 2 DE) and pulse wave Doppler tissue imaging ( PW DTI) were performed in 42 patients and 24 healthy controls.

采用多普勒组织成像（DTI）技术与同步心电图相结合观察阵发性心房颤动（简称房颤）患者心房各点电-机械时间（PA）和心房收缩时间（A）及其离散度的变化。

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Discussion on the relation between relativity of simultaneity and both of time dilation and length contraction

同时性的相对性与时间膨胀及长度收缩

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Seeking of Proper Time for Giving Uterine Contraction Agent and Observation of Bleeding During Cesarean Section

剖宫产术中宫缩剂应用时机与子宫出血量的观察

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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.

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。

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Local anesthetic ( 3 mL) was injected immediately, and the diminished time of muscle contraction after injection was recorded.

即注入局麻药试验剂量3mL，记录注药后肌肉收缩消失时间。固定穿刺针，继续注射剩余药量。

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Recognition on time dilation and length contraction effect based on relativity of simultaneity

基于同时的相对性对钟慢尺缩效应的再认识

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Conclusion: TGP may regulate the motility of colon of Guinea pig through lengthening the time of contraction and M receptor may be one of the passages of TGP.

结论：白芍总甙可通过延长结肠收缩时间，增强结肠收缩幅度而调节结肠运动，结肠平滑肌M受体是白芍总甙作用途径之一。

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Based on the model for the contraction of extended jogs [ 1], the time needed for the contraction under the action of applied stress and the climb velocity of extended dislocations are derived. And consequently, an expression of the steady state creep rate is obtained.

在文献[1]提出的扩展割阶束集模型的基础上，求出了在外加应力作用下割阶束集所需的时间和扩展位错的攀移速率，从而推导出稳态蠕变速率的表达式。

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Arguably, the need for strong governance is just as great at a time of risky contraction, when bank boards must seek to square the interests of anxious regulators and politicians with those of investors.

可以说，在风险较高的业务收缩期，银行同样非常需要严格的公司治理，因为银行董事会必须协调各方（焦虑的监管机构、政界以及股东）的利益。

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Result Compared with the ischemia/ reperfusion group, ischemic preconditioning enhanced the recovery of cardiac hemodynamics. During ischemia period, ischemic preconditioning significantly delayed the onset time of ischemic contraction.

结果在缺血期间，晶体心麻液预处理显著延迟了心肌缺血性挛缩的发生时间。

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The results showed that: the tremella polysaccharide at concentration of 0.05%, 0.10% can prolong the time of contraction amplitude falling to 90%, 50% and 10% of the max contraction amplitude ( P < 0.05).

结果表明：较低浓度（0.05%、0.10%）的银耳粗多糖可以延长收缩幅度下降到最大收缩幅度90%、50%和10%的时间（P<0.05）。

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The lentinan at concentration of 0.81% can shorten the time of contraction amplitude decreasing to 50% and 10% of the max contraction amplitude ( p < 0.05).

较高浓度的香菇多糖（0.81%）可以缩短收缩幅度下降到最大收缩幅度90%和50%的时间（p<0.05）。

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The Effection of Pouring Time on the Contraction Time and Quantity of Iron Casting

浇注时间对铸铁件收缩时间和收缩量的影响

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The time of detrusor contraction ( Tcon) was ( 86.07 ± 36.09) sec;

逼尿肌收缩时间（Tcon）为（86.07±36.09）sec；

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After having ligated for 15 s, the systolic and diastolic early motion velocities and mobile amplitude were decreased, time of isometric contraction was prolonged.

结扎15s时收缩期、舒张早期运动速度、移动振幅显著降低，等容收缩期时间延长。

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Objective To observe the relationship between duration time of isometric contraction and blood pressure.

目的分析肌肉等长收缩持续时间与人体血压变化之间的关系。

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According to Lorentz transformation, we deduce the formulas of time expansion and length contraction by different ways.

根据洛仑兹变换从不同角度推出时间膨胀及长度收缩的公式。

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The article shows the approach to eliminate or reduce defects caused by unstable extrusion pressing for reorganized steps of backward extrusion pressing and gives a new idea of the time when contraction point occurs at the end during backward extrusion.

本文对反挤压过程重新划分阶段，指出了消除或减少不稳定挤压引起缺陷的途径，对反挤压时尾部收缩点出现时间提出了新的观点。

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