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数字网位仪的研制
Authors
傅仰大
粘宝卿
Publication date
1 January 1994
Publisher
Abstract
数字网位仪的研制厦门大学粘宝卿,傅仰大一、概述众所周知,在海洋水产拖网作业中,若能使网具瞄准鱼群捕捞,就可以大大提高捕捞的经济效益,减少许多人力、物力的盲目消耗。而解决这一问题的关键是如何实时、准确地获知网具在水下所处的水层深度以及网口的高度。在国外..
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Last time updated on 23/08/2016