echolocation

动词：

动词: echolocate

更多词形：

动词: echolocate |

单词例句：

Most bats produce echolocation sounds by contracting their larynx.

大多数蝙蝠通过收缩喉咙所发出的声音实现回声定位。

Furthermore, there would be some JAR in the FM part of H. armiger’s echolocation calls (2) JAR in duration: species emit CF/FM echolocation calls would also shorten duration when flying in pair.

（2）与叫声时间有关的避免干扰反应假说：常频/调频型蝙蝠会藉由缩短叫声时间，以减少同种出现时造成的干扰。

Of the some 900 species of bats, more than half rely on echolocation to detect obstacles in flight, find their way into roosts, and forage for food.

在约900种蝙蝠中，一半以上依靠回一定位法探测飞行中的障碍物，寻找回巢的路线和用作食物的饲料。

Echolocation,the active use of sonar along with special morphological and physiological adaptations,allows bats to "see" the world with sound.

主动应用声纳并与特殊形态学和生理学调节结合在一起的回声定位，使蝙蝠能用声音来“看”这个世界。

H. armiger emits constant frequency/frequency modulated (CF/FM) echolocation calls with relatively longer call duration.

由于台湾叶鼻蝠的回声定位叫声为常频/调频型，回声定位叫声时间也较其他只使用调频型叫声的物种来得长，因此本研究检验的假说分为以下两部份：（1）与频率有关的避免干扰反应假说：当两只个体回声定位叫声中，常频型讯号的频率，也就是峰值频率的差异很小时，应该会出现避免干扰反应；

BAT: Any of various nocturnal flying mammals of the order Chiroptera, having membranous wings that extend from the forelimbs to the hind limbs or tail and anatomical adaptations for echolocation, by which they navigate and hunt prey.

蝙蝠：一种翼手目的夜间飞行的哺乳动物，它们具有能从前肢伸到后肢或尾巴的膜状翅膀，其生理结构能够靠声波定位，并以此导航和捕食。

We studied the echolocation calls and acoustic response properties in the inferior colliculus of the least horseshoe bat Rhinolophus pusillus.

研究了菲菊头蝠自由飞行状态下的回声定位信号和下丘神经元的声反应特性。

The answer is that they use echolocation or sonar.

答案是：它们用回声定位或者说声纳系统。

Some bats have specialized structures for emitting echolocation calls.

一些蝙蝠已经把用于发出回声定位叫声的结构专门化了。