查询词典 sampling fraction

The results showed that it was effective for TVB-N mass fraction rapid detection in fishmeal based on electronic nose.

研究结果表明，利用电子鼻技术可以有效对鱼粉中TVB-N质量分数进行检测。

Left ventricular ejection fraction was evaluated at registration and 3, 6, 9, and 18 to 21 months.

在3，6，9和18到21个月检测左室射血分数。

A normal ejection fraction is 50 percent or greater.

正常射血分数为50%或更高。

Objective: To analyze 25-case off-pump coronary artery bypass grafting in patients with low left ventricular ejection fraction.

目的：分析25例射血分数小于30%的冠心病患者进行的非体外循环冠状动脉搭桥术。

Results:Ejection fraction and cardiac index were normal in four groups.

结果：各组射血分数和心脏指数均正常。

Adrenomedullin Aortic root Coronary sinus Left ventricular ejective fraction Heart failure.

肾上腺髓质素主动脉根部冠状静脉窦左室射血分数心力衰竭。

Mitral regurgitation ; systolic murmur ; color Doppler ; flow image ; ejective fraction ; auscutation

二尖瓣返流；收缩期杂音；彩色多普勒；血流显像；射血分数；听诊

METHODS Left ventricular ejective fraction, regurgitant velocity and regurgitant direction were examined by color Doppler echocardiography in 151 patients with medium mitral regurgitation. The results of LVEF, regurgitant velocity and regurgitanting gradient were compared between patients with and without murmur grope.

随机选择151例经超声心动图检查，显示有中度及中度以上二尖瓣返流的患者，根据彩色多普勒血流显像分别测定LVEF、返流速度等超声参数，比较其在杂音组及无杂音组间统计学差异，分析其对听诊的可能影响。

All indexes of systolic function (systolic peak velocity Vs、systolic peak displacement Ds、 and ejective fraction of left ventricle EF)were examined against baseline, at the end of 60 min ischemia and after 180 min reperfusion.

实验犬分别于缺血前基础状态、缺血60分钟、再灌注180分钟时进行心脏收缩功能指标参数，即收缩峰值速度、收缩峰值位移、左室射血分数测量。

Eldon S. Hendriksen and Michael van Breda, the authors from Southern Methodist University of a leading text on accounting theory, have said that annual depreciation, one kind of allocation, is simply a fraction of the total cost and is not necessarily related to occurrences within the year, so it has no real-world connotations.

艾尔敦第亨德里克森和Michael Van Breda公司，作者从南方卫理公会大学的领导的案文对会计理论，有说，每年折旧，一种分配，只不过是一小部分的总费用是没有必然关系发生的内部今年，所以它没有现实世界的内涵。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。