This paper briefs the fundamental concept and theory, type and structure, key technical and so on of cluster.
本文介绍了有关群集的基本概念与原理、群集的类型与结构、群集的关键技术等。
The structure and work theory of a new type of hydraulic lock of the thinnest coal seam shearer is described in this paper.
介绍了一种新研制的极薄煤层采煤机液压锁的结构特点及工作原理，并对其进行了性能实验。
This article puts forward and illustration of a new type knee, it also discusses its structure characteristics and mechanical properties in theory.
提出了一种新型升降台的设计型谱，从理论上探讨了其结构特性、力学特性等。
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