This calculation was based on surface trenching and eight diamond drill holes.

这个计算是基于表面挖坑八金刚石钻孔.

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In this paper, trial - manufacture and application of sandwich structure on diamond drill bit were studied.

采用 冷压 成型夹层和加灰(过渡层)热压烧结法制备了一种夹层结构金刚石钻头.

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A new special diamond drill which combines ultrasonic vibrating with grinding of diamond grits is introduced.

介绍一种新研制的能把超声振动和金刚石磨粒磨削结合在一起的特种金刚石钻头.

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The kinetic load ability of diamond is a main index of diamond drill design.

金刚石动载指标是金刚石钻头设计的主要指标之一.

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Uses the special die head , may the diamond drill bit agglutination on the lining.

采用特殊模头, 可以将水钻粘合在面料上.

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