So, all above mentioned makes it necessary to study the truth-preserving sampling technique for the deep-sea surface layer sediments.
这些问题的提出就使得深海海底表层沉积物的保真取样技术研究非常有必要。
In chapter 6, the spring principles of two types deep-sea sediments truth-preserving sampling systems are compared and the structures are analyzed.
第六章比较了两种深海沉积物保真取样系统的保真触发原理，并分析了其结构。
In chapter 6, the spring principles of two types deep-sea sediments truth-preserving sampling systems are compared and the structures are analyzed.
第六章比较了两种深海沉积物保真取样系统的保真触发原理，并分析了其结构。
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