The authors described the structure of a newly - developed wedge-tube bolt, its reinforcement principles and anchoring performance, and the results of in situ pull test and productive applications.
当前某些新型锚杆有忽视顶锚的不良倾向。作者介绍了新研制的楔管式锚杆的结构、加固原理、锚固性能、及其在现场条件下的拔拉试验与工业应用结果。
The structure, testing principle and boundary design of the system software for test system of the performance core of security valve are introduced in this paper.
介绍了安全阀铁心磁性能测试系统的结构、测量原理、系统软件界面设计。
This paper introduces the structure and operation principle of the synchronous rotary hydraulic amplifier as well as the main data of performance measured during the test on platform.
本文介绍同步回转式液压放大器的结构和工作原理，以及它在台架试验中所测得的主要性能数据。
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