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- The coronary peak velocity(CPV)and the velocity time integral(VTI)in left anterior descending arterial flow were measured during dipyridamole induced hyperemia under control conditions and each grade of acute AR. 记录各返流程度的舒张期血流速度峰值 ( CPV)、加速时间 ( AT)、减速时间 ( DT)和全心动周期的速度时间积分 ( VTI)及动脉舒张压 ( DBP)。 然后在各种状态下经股静脉匀速推注潘生丁 ( 2 .;0 mg/kg);2分钟推完;记录各组每分钟冠脉血流的 CPV和 VTI;
- The peak A velocity(VA), velocity time integral of A-wave(A-VTI), atrial ejection force(AEF) and peak atrial tissue velocity(Va) decreased in day 1 after cardioversion, but gradually recovered with time. 房颤患者除颤后 2 4小时VA、A -VTI、AEF和Va明显低于正常 ,随时间推移逐渐增高 ,至除颤后 7天时基本恢复至正常水平。
- By adapting Davenport spectrum for horizontally fluctuating wind, wind velocity time history at the opening was simulated by using trigonometric series. 采用Davenport水平脉动风速谱;利用三角级数对开孔处的来流风速时程进行模拟.
- If the field changes slowly, we can replace the time integral by a line integral over the unperturbed orbit. 如果场缓慢改变，我们能够用未扰动轨道的线积分来代替时间积分。
- In the forward process, the turn-off time integral was represented analytically. 对正演过程中对关断时间的积分采用了解析表示。
- Start-up time can be saved by controlling the optimum velocity time of feeding, optimum temperature-rise time of low-pressure converting furnace and adding self-heating balance design. 通过寻找化工投料的最佳速度、时间及低变炉最佳升温时间,并加设合成塔催化剂的自热均衡设计等措施,可以节约开车时间,减少经济损失。
- The time integration is based on a five-stage explicit Runge-Kutta scheme. 当采用粘性方程进 行求解时，不需要单独确定粘性损失和气动阻塞等参数。
- Time integral of power losses. 功率损耗对时间的积分。
- They are utterly different but at the same time integrate with and penetrate into one another. 它们既风格迥异又相互交融、渗透，形成多元一体格局。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- I think the work can be completed ahead of time. 我认为这项工作能提前完成。
- He will come on time even though it rains. 即使下雨，他还是会准时来的。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- A precise time integration algorithm is developed for solving the dynamic equation in flexible manipulators. 本文给出了精细时程积分法求解柔性机械臂动力学方程的方法。
- Gazelles can move with astonishing velocity. 羚羊跑起来速度惊人。
- In this paper, load identification is studied in the time domain by combining the coupling method and the precise time integration method. 该文通过耦合方法与精细时程积分法的结合，对载荷辨识问题进行时域分析和推导。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- The car was moving at such a velocity! 那辆汽车的速度简直太快了！
- I need some time to orient my thinking. 我需要一些时间来使我的思想适应。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
