The structure and principle of two new types of cutting tools (bevel wedge type and eccentric type) for boring O-ring grooves have been introduced in this paper.
本文介绍了斜楔式和偏心式两种新型内孔挖槽刀具的结构和原理。
As a sophisticated tunnel lining type, the universal wedge-shaped segments can do a good job in the control of the axis of the shield-driven tunnel and the quality of the segment ring.
通用楔形管片作为一种较先进的隧道衬砌形式，在盾构法施工中能够较好地控制隧道掘进轴线和管片成环质量。
Through the comparison with wedge rope-ring in present, this paper introduces the advantage of new type wedge rope-ring when its machined in shop or used in site.
通过与现有楔形绳环的比较，介绍了新型楔形绳环在加工及现场使用的优点。
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