查询词典 Doppler shift

Sometimes it can take years to sort out these Doppler observations.

有时候要花数年的时间才能分类这些多普勒发现。

A feasible Laser Doppler Velocimetry technique based on Amplitude Discrimmation has been used to determine the local gas and solids velocity simultaneously, which can lead to the local slip velocity between the gas and solids in a cocurrent downflow circulating fluidized bed.

利用幅值鉴频的激光多普勒测速技术，同时测定并流下行循环流化床中的气体和固体的局部速度，由此可以获得气固间的局部滑落速度。

The experiment results prove that this method effectively re— duces the measurement error caused by the uneven distribution of the flow velocity,and increases the accuracy of Doppler uhrason— iC flowmeter.

层流流动时(雷诺数Re#lt；2 300)，管内流体分层流动，各流层之间互不混杂而平行于管道轴线流动，流层间没有流体质点的相互交换。

Objective: To investigate the duplex sonography of color Doppler ultrasound in the diagnosis of lower extremity atherosclerosis.

目的：探讨双功能彩色多普勒超声在诊断下肢动脉硬化症中的应用价值。

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。

METHODS: After instrumentation with arterial and sagittal-sinus cannulae, electrocorticogram, and sagittal sinus Doppler flow measurement seven adult sheep were given a random sequence of short anesthetic infusions with methohexital, ketamine, and propofol.

斦otilde；法：7只羾，先在每只羾身举安置徨脉和失羶窦导管，脑皮层电图和失羶窦超声血流分析仪，然后随机给予小剂量的异丙酚，美索比托和氯胺酮进行短时间麻醉，同时采取多个血样标本和脑电图变化来评估药效。

As a new type of electromagnetic material, left-handed materials have very special electrodynamic properties, such as the reversal of Snells law, the Doppler effect, and Cerenkov radiaton.

作为一种新型的电磁材料，异向介质具有独特的电磁特性，如负折射率，负多普勒效应，逆楔伦可夫辐射等。

Objectives To explore the clinical application value of transcranial doppler and electroencephalography in patients with virus meningitis.

摘 要］目的：探讨经颅多普勒超声和脑电图在病毒性脑膜炎中的应用价值。

Objective To evaluate the practical value of combined video electroencephalography and trans-cranial Doppler for differential diagnosis of pediatric migraine.

目的 探讨儿童偏头痛在视频脑电图及经颅多普勒超声的鉴别诊断及不同治疗。

The second is to cut a mere 100 calories from your diet , which is the equivalent of a tablespoon of butter.

第二个就是从你的饮食中减少一百卡路里，只是相当于一大汤匙的黄油。

This is where the Rorschach test comes in.

现在，罗氏测试就出现了。