The paper introduces a non-filled dry central core optical fiber cable. 介绍一种不填充油膏的干式中心管光缆。
In conclusion the regulations of crack size of feeding water in non-filled gravel filter should be determined by different design standards combined with effective factors for the filters. 认为非填砾过滤器进水缝隙尺寸的规定,应根据设计标准的不同,综合考虑影响非填砾过滤器进水缝隙尺寸的因素来确定。
The Crack Size Determination of Feeding Water in Non-filled Gravel Filter 非填砾过滤器进水缝隙尺寸确定