Leading of acoustic emission equipment providers
Share：| The measurement machine of an underwater ultrasonic wave (sonar) is known for the purpose of navigation. The ultrasonic wave pulse is radiated in the sea, and the reflection wave from a target object is detected, and this is presence, measures the distance, distinguishes the direction, and a kind of radar of the object. There is a sounding machine which measures the detection of the shoal of fish and the depth of the sea, and the element corresponding to the purpose is used respectively. |
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