您要查找的是不是：
- pulsed wave Doppler ultrasonic flowmeter 脉冲波多普勒超声流量计
- pulsed Doppler ultrasonic flowmeter 搏动性多普勒超声血流计
- range-gated Doppler ultrasonic flowmeter 距离选通脉冲多普勒超声波流量计
- Doppler ultrasonic flowmeter method 多普勒超声流量计法
- Doppler ultrasonic flowmeter 多普勒超声流量计
- The ultrasonic flowmeter can detect the casing deformation rapidly by measuring the flowrate variation in the case. 利用超声波流量计测试套管内流量的变化,可以迅速准确地找到套管破损处。
- Methods 28 cases suffered of portal vein disease under color Doppler ultrasonic examination and portography. 方法将28例门静脉疾病患者行彩色多普勒超声检查并行手术及造影证实。
- Conclusion: Doppler ultrasonic can be used in latent period as a screen test to predic the fetus distress. 两组比较，宫缩期及间歇期各项指标有差别，为诊断胎儿窘迫的筛选方法。
- Research the measurement theory of time-difference-type ultrasonic flowmeter, derivate the theory formula and show the relevant measurement theory figure. 研究了时差式超声流量计的测量原理，对理论公式进行了推导并给出了相应的测量原理图。
- The precision of the ultrasonic flowmeter with small tube diameter and frequency difference method is affected by several factors,so to gain more accuracy is difficult. 小管径频差法超声波流量计的测量精度受各种因素的影响，因而获得较高精度比较困难。
- Objective:To evaluate the character of Color Doppler ultrasonic of senile degenarative heart valvular desease. 目的探讨老年退行性心脏瓣膜病的彩色多普勒超声特征。
- To evaluate the character of Color Doppler ultrasonic of senile degenarative heart valvular desease. 目的探讨老年退行性心脏瓣膜病的彩色多普勒超声特征。
- Products are widely used ultrasonic cleaning, welding, detection, B-medical, beauty equipment, acoustic transducer, micro-driven, ultrasonic flowmeter, and other fields. 产品广泛用于超声清洗、焊接、探测、医疗B超、美容仪器、水声换能、微型驱动、超声波流量计等众多领域。
- Abstract: The precision of the ultrasonic flowmeter with small tube diameter and frequency difference method is affected by several factors,so to gain more accuracy is difficult. 文摘:小管径频差法超声波流量计的测量精度受各种因素的影响，因而获得较高精度比较困难。
- Method We examined the suspicious cases with color doppler ultrasonic cardiogram(CFM),and compared with the results of autopsies. 方法对可疑病例予彩色多普勒超声心动图(CFM)检查,死亡病例尸解。
- Objecctive To study the diagnostic value of ultrasonic image and color Doppler ultrasonic examination used in ec-topic debouch of ureteral orifice. 目的探讨超声显像和彩色多普勒技术在输尿管异位开口中的诊断价值。
- Conclusion: Doppler ultrasonic technique can be used to observe the injury and reparation of rat carotid artery after de-endothelialization. 结论：超声指标能够无创动态观察大鼠颈总动脉损伤及修复过程。
- Objectives:To study the change of cerebral haemodynamic of patients with hypertension by transcranial Doppler ultrasonic technique. 目的:利用经颅多普勒超声技术研究高血压病脑血液动力学的变化。
- MethodTo adopt the color Doppler ultrasonic wave the conduct the contrast normal pregnant women and PIH women of post-pregnancy 30 cases respectively. 方法运用彩色多普勒超声对正常妇女、正常孕妇和妊高征患者三组各30例的胫后动脉血流指数改变的对照研究。
- Objective:To evaluate the significance of high-frequency color Doppler ultrason ography in diagnosis of the salivary gland neoplasm. 目的:探讨高频彩色多普勒超声对涎腺肿瘤的诊断价值。
