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- critical annular velocity 临界环空流速
- Ve/Va<1,P<0. 05. MFP in 9 patients display E/A>1,but PW-DTI display Ve/Va<1. Conclusion Mitral annular velocity represent left ventricular whole diastole function. 其中9例患者二尖瓣血流频谱E/A>1;但DTI-PW检测表现为Ve/Va<1。
- Some factors can affect swarf\|carrying capacities, such as annular velocity, rheological properties and density of drilling fluid, deviation angle of hole, and size of swarf. 对钻井液的环空返速、流变性能、密度及井眼倾角、铣屑尺寸等参数对侧钻水平井套管段铣铣屑环空运移的影响进行了实验研究。
- Methods: Left ventricular ejection fraction(LVEF), mitral inflow peak velocity(E,A), and mitral annular velocity(Sa, Ea, Aa) were measured with DTI PWD in 20 patients with coronary heart disease(CHD) and 20 normal subjects. 方法 :测量 2 0例正常人和 2 0例冠心病患者左室射血分数 (L VEF) ,二尖瓣口舒张期血流频谱 E波、A波和二尖瓣环频谱 Sa波、Ea波、Aa波的峰值速度。
- Methods:Mitral annular velocity in early diastole(Ea)and late diastole(Aa)in normal and hypertensive patients by Dopper tissue imaging(DTI)were studied, also mitral inflow velocity E,A in hypertensive patients by Doppler flow imaging were detected. 方法 :以多普勒组织成像技术分析正常人和高血压病患者二尖瓣环的舒张早期运动速度 ( Ea)、舒张晚期运动速度 ( Aa) ,比较两者的不同。 并用血流多普勒法检测二尖瓣口舒张期流速 E,A,分析高血压病患者血流参数的异常。
- TDI paraments included peak early diastolic annular velocity (E),peak diastolic annular velocity with atrial contraction(A),and isovolumic relaxation time (IR)intervals,calculating the ratio of E/A. 然后应用组织多普勒技术测定E波（舒张早期三尖瓣环运动峰值速度）、A波（舒张晚期三尖瓣环运动峰值速度）和IR（等容舒张时间），并计算E/A比值。
- The annular markings on a tree indicate its age. 树的环形纹理显示其年龄。
- She is a very discerning art critic. 她是位眼光敏锐的艺术评论家。
- I think the chastisement to him is too critical. 我认为对他的惩罚太严厉了。
- Gazelles can move with astonishing velocity. 羚羊跑起来速度惊人。
- The inquiry was critical of her work. 该项调查对她的工作提出了批评。
- 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 reform is at its critical stage now. 改革正处于关键阶段。
- The car was moving at such a velocity! 那辆汽车的速度简直太快了！
- Her performance won her much critical acclaim. 她的表演大获评论界赞颂。
- Gazelles can movewith astonishing velocity. 羚羊跑起来有时速度惊人。
- We have come to the critical moment. 现在到了紧要关头。
- The hare darted off with the velocity of a bird. 野兔像鸟一样快速掠去。
- He is a very famous film critic. 他是一个很有名气的电影评论家。
- The critic knocked her latest novel. 那位批评家贬损她最新的那部小说。
