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星星们,你们知道吗?在我们这个星球上,人类唯一没有征服的地方就是海底世界。今天的人类,已经多次登上地球最高的地方——珠穆朗玛峰;多次到宇宙空间去旅行,人造的探测器已达太阳系的外层空间。然而,海洋的最深处是个什么样子,人们还不是很清楚。原因是到海底去探险,花费巨大,许多问题还难以解决。最早,人们在沿海利用竹竿、探测锤等仪器,甚至还用带计数器的水文巡测车来测量海深。直到20世纪初,人们开始采用“回声探测仪”——也就是“声呐”来测量海洋深度后,才
Do you know the stars? The only place on earth our planet does not conquer is the underwater world. Today’s humankind has repeatedly climbed Mount Everest, the tallest place in the world; and many times traveled to space to travel, man-made detectors have reached the outer space of the solar system. However, it is not yet clear what the deepest part of the oceans is. The reason is to explore the sea, spend huge, many problems still difficult to solve. The earliest, people in the coastal use of bamboo rods, sounder and other instruments, and even with a counter hydrographic cruise car to measure the depth of the sea. Until the beginning of the 20th century, people began to use the “echo detector” - that is, “sonar” to measure the depth of the sea before