The purpose of this paper is to study a kind of noninvasive temperature measure method, which based on shifts in echo location of backscattered ultrasound from heated tissue.
设计了实验系统，研究了生物组织超声回波时移与其温度的相关关系，以期利用这种相关性实现热疗中组织温度的无创检测。
Bats are the only mammal capable of flying and are so highly evolved to be capable of pinpointing a single insect flying in the pitch black and plucking it out of the air using echo location.
蝙蝠是唯一会飞的哺乳动物，进化程度很高，能够在一片漆黑中精确定位一只飞虫的位置，并利用回波定位准确地从空中捕捉。
The bat judges distances by a kind of echo-location.
蝙蝠用一种回声测定法来判断距离。
Detection of echo energy could reveal the presence of a target and its location, size, shape, density and intensity.
检测回波能量就可获知目标物的存在、位置、大小、形状、浓度及强度。
When the echo returns to the hunting bat, the predator can glean information about the size, location and more of prey.
这些声调组成一个回声定位声波，蝙蝠接收到返回声波的时候，这个捕食者就会获得猎物的大小、位置和多少等信息。
If you buy a bat detector you can pick up their high-pitched echo-location calls as well.
如果你购置了一个蝙蝠探测器，你还可以探测蝙蝠高音的回声，便知它们的位置。
The electric voltage echo coefficient provides dependable theories to the power cable fault location.
电压反射系数为电力电缆故障测距提供了可靠的理论依据。
Methods 23 cases were examined by ultrasound to assess the location, extension and internal echo structure of the lesion. The results of ultrasonography were compared with those of surgery findings.
方法：采用超声仪探查23例患儿病变区的位置、大小形态和内部回声情况，并将结果与手术及病理发现相比较。
Methods 23 cases were examined by ultrasound to assess the location, extension and internal echo structure of the lesion. The results of ultrasonography were compared with those of surgery findings.
方法：采用超声仪探查23例患儿病变区的位置、大小形态和内部回声情况，并将结果与手术及病理发现相比较。
应用推荐