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现在海上取岩芯试样最常用的两种方法是,在锚定的驳船或其它船只上使用陆地上常用的设备,或者是使用油井钻进或深海钻进工程所常用的那种动力定位的钻井船。尽管第一种方法所需的定位时间较长,但只能用在深
Two of the most commonly used methods for taking core samples offshore today are to use equipment commonly used on land for anchored barges or other vessels or to use the kind of dynamic positioning commonly used in well drilling or deep sea drilling Drilling boat. Although the first method requires a longer positioning time, it can only be used in depth