People have learned a lot from animals. Using the wings of birds, people make airplanes and successfully fly in the air. Bats can send out ultrasonic waves and search for food according to the echo of the environment. People study bats' unique ability and invent radar;
海豚声纳发射器能自动缩短信号的持续时间和信号距离,以利于准确地瞄准目标。科学家们模仿海豚体形和身体各部比例,以及这一奇妙功能,研制了新式核潜艇声纳系统,使其航速提高了20~25%。而且还设计出新颖的听水器。……
Dolphin sonar transmitter can automatically shorten the signal duration and signal distance, so as to aim at the target accurately. Scientists have developed a new type of nuclear submarine sonar system, which can improve the speed by 20-25% by imitating the dolphin's body shape, proportion of all parts of the body and this wonderful function. In addition, a new type of hydrophone has been designed
人们也可以利用动物猫爪的形状和结构,制造出一副特殊的带有“肉垫”和“钩子”的手套,当需要登山或攀爬时,把手套上的钩子按钮打开,使用它就不会掉下来;可以为双脚有残疾的人做成“鞋”,还可以把“鞋”装在假肢上,日常走路柔软舒适,不发出声音,也不影响别人;当残疾人走在冰、雪地里,利用“钩子”就不会摔倒,而且还可以爬山,比正常人更方便。
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