这些结构在早些年曾被回声探测器探测到，但是它们从未被钻探过。
These structures had been detected years earlier by echo-sounding instruments, but they had never been penetrated in the course of drilling.
很快，切片机、回声探测器和探鱼飞机又出现了。
Soon came filleting machines, echo-sounders and spotter planes.
这样就产生了目前各种船舶上普遍应用的回声探测仪。
So was born the echo-sounding apparatus, now in general use in ships.
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。
If you buy a bat detector you can pick up their high-pitched echo-location calls as well.
那位生物学家说，有些蝙蝠，借助于接受它们发出的尖叫声的回声，就能探测出障碍物的位置，并且避开这些障碍物。
The biologist says: certain bats by receiving the echoes to the squeaks they emit, can locate and steer clear of obstacles.
眼外肌缺如时ubm在眼球前部不能探测到眼外肌或仅能测及极薄的高回声。
In cases with the absence of extraocular muscle, only could a very thin reflective echo be detected at the ocular anterior segment by UBM.
那位生物学家说，有些蝙蝠，借助于接受它们发出的尖叫声的回声，就能探测出障碍物的位置，并且避开这些障碍物。
That biologist says: certain bats by receiving the echoes to the squeaks they emit, can locate and steer clear of obstacles.
那位生物学家说，有些蝙蝠，借助于接受它们发出的尖叫声的回声，就能探测出障碍物的位置，并且避开这些障碍物。
That biologist says: certain bats by receiving the echoes to the squeaks they emit, can locate and steer clear of obstacles.
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