净距 meaning in Chinese

clear dimension
clear distance
clear spacing
clearance
gabarite

Experimental study on mechanical characteristics of twin tunnels with small spacing
小净距并行隧道力学状态的试验研究
This paper summarizes the actuality and success in construction of such tunnel and has an analysis on problems to be solved
由此，本文总结了小净距隧道建设的研究现状及取得的研究成果，对有待解决的问题进行了分析。
Combined with the engineering practice of small interval tunnel in china , this paper points out its five key technology problems : its concept , reasonable clear interval , support parameter , construction method and strengthening technology for the shamed surrounding rock
摘要结合国内小净距隧道建设现状，笔者认为其设计施工关键技术主要在于小净距随道的合理净距、支护参数、施工方法、中夹岩加固技术等。
The natural vibration spectrum curve is measured and the critical velocity to induce trashrack bar galloping is calculated . the effect of bar spacing on the bar strain and the characteristics of the exciting force are discussed . by fatigue analysis it is obtained that the service life of weld at the fixed end of the bar is about 13
分析了发电工况和抽水工况时的振源特性，讨论了栅条净距对栅条应变的影响，按钢结构设计规范对栅条进行了疲劳计算， 1 ~ #测点处可视为不会发生疲劳破坏， 2 ~ #测点焊接处的疲劳寿命约为13 . 6年。