超声波扫描显示她怀了双胞胎。
大部分妇女怀孕期间都将进行超声波检查，尽管不是规定性的。
Most women will be offered an ultrasound scan during pregnancy, although it's not obligatory.
它还利用超声波来探测物体的大小和形状。
Another thing it uses ultrasound to detect is the size and shape of objects.
我们往往低估了使用超声波的动物的能力有多复杂。
We have tended to underestimate just how sophisticated the abilities of animals that use ultrasound are.
让我们来谈谈声谱的另一端，人类听不到的声音——超声波。
Let's talk about the other end of the acoustical spectrum, sound that is too high for humans to hear—ultrasound.
根据文章所说，图片显示了带超声波传感器的手套是如何工作的。
Picture shows how the glove with an ultrasonic sensor works according to the passage.
许多动物都用超声波来进行侦查，有些动物还能发出非常高频的声音。
Ultrasound is used by many animals that detect and some of them send out very high frequency sounds.
它们可以探测到超声波；这意味着当蝙蝠靠近，飞蛾可以察觉到它的存在。
They can detect ultrasound; this means that when a bat approaches, the moth can detect the bat's presence.
三叶虫在房屋周围飞来飞去，发出超声波信号，绘制出房间的地图，以备日后清洁时使用。
The Trilobite scuttles around homes emitting ultrasound signals to create maps of rooms, which are remembered for future cleaning.
当番茄植株的茎被切断时，一小时内记录了25次超声波疼痛声，同时记录了15次烟草植物的超声波疼痛声。
When the tomato plants' stems were cut, 25 ultrasonic pain sounds were recorded in an hour, and at the same time, 15 ultrasonic pain sounds were recorded from the tobacco plants.
那些不受直接威胁的植物每小时发出的超声波不到一次。
Plants that were in no immediate danger gave out less than one ultrasonic sound per hour.
在缺水情况下，烟草植物在一小时内发出多少次超声波尖叫来表达痛苦？
How many ultrasonic pain sounds did the tobacco plants give out in an hour when deprived of water?
超声波扫描仪的体积，已逐步改小。
蝙蝠用超声波识别猎物发出的震动。
研究结果公布在心血管超声波期刊上。
The results are published in the journal Cardiovascular Ultrasound.
研究者使用一种超声波观察到了反应。
或者用超声波代替激光。
但是，超声波检测仪倒是能解决这个问题。
对于在排水舱内的导线用超声波进行净化。
这不需要一种特殊的手机或者超声波。
超声波影像被用来检查肌肉纤维本身到底发生了什么。
Ultrasound images were taken to see what was going on in the muscle fibres themselves.
庞贝表明正确的超声波信号产生的各种声音都可以听见。
The correct ultrasound signal, Pompei suggests, can produce any kind of audible sound.
蝙蝠视力很差，它们通常用超声波定位来导航。
Some bats with poor eyesight depend on echolocation to navigate.
螳螂的耳朵只有一条裂缝，对于蝙蝠发出的超声波非常敏感。
The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.
当超声波揭示她怀了一个女孩时，“我是绝对震惊，”她说。
When an ultrasound revealed she was carrying a girl, "I was absolutely shocked," she said.
研究人员用超声波成像来检测颈动脉和大脑的一条动脉的反应。
The researchers then used ultrasound imaging to measure the effects on the carotid artery and an artery within the brain.
这项研究的其他测试还发现，将超声波用于土豆也有类似的效果。
Other tests in the same study found that using ultrasound on potatoes had a similarly beneficial effect.
不过，泰勒博士发现经他验证的所有试验无一例外的使用了高能超声波。
Dr Tyler, however, realized that all of the studies he had examined used high-intensity ultrasound.
研究者通过超声波发现，23周大的胎儿即开始在睡眠时快速移动眼球。
Studies using ultrasound have shown that fetuses exhibit REM sleep as early as the 23rd week of gestation.
研究者通过超声波发现，23周大的胎儿即开始在睡眠时快速移动眼球。
Studies using ultrasound have shown that fetuses exhibit REM sleep as early as the 23rd week of gestation.
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