A technique for Marine seismic acquisition around salt domes or other circular features in which the acquisition vessel travels in a spiral path above the feature.
海上环绕盐丘或其它环状物体进行地震数据采集时使用的一种技术，采集船只在环状物体上方以螺旋形路径航行。
For technique acquisition, the other methods of this book are usually more effective than outlining which, even when it works, can be time consuming.
对获取弹奏技术而言，本书中的许多其它方法通常比轮廓法更有效。轮廓法即使可行，仍然可能耗费时间。
The hardware and software design principle for real-time data acquisition and processing of an acoustic positioning system using IBM/ PC and relavent interface technique are described in this paper.
本文主要介绍用IBM/PC 及接口技术，实现声学综合定位系统实时数据采集及处理的软硬件的设计思想。
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