采用红光对单、双掺铌酸锂晶体中全息光栅的热固定效率及光擦除和暗存储寿命的特性进行了深入的实验研究。
In this paper, the factors of affecting thermal fixing efficiency, and lifetimes of fixed gratings under both illumination and dark conditions are analyzed theoretically.
立边板肋具有极佳的防漏水性能，不需打胶，暗扣方式固定，表面无外露螺钉，免得污染老化问题。
Rib of slab has prominent water-proof capability. It is fixed by hidden key without any glue. No bolt on the outside surface which prevent from pollution and aging.
有时，用一种叫做暗钉的方法来固定木板，即将钉帽隐藏起来。
Another method sometimes used for fixing floorboards is known as secret nailing, where the nail heads are hidden.
在每个支座处，使用一个直径为3.2 的暗铆钉与龙骨每个翼缘固定。
Use one 3.2 diameter blind rivet through each flange at each support.
本文结合工作经验，探讨浅埋暗挖热力隧道内固定支架处结构抗滑移设计的方法。
In this paper, the anti sliding design of shallow tunneling structure at the position of fixing support of the heating engineering is discussed and according with a certain working experience.
固定方式：采用暗式螺钉和异形件方式固定。
Fixing mode: it is fixed by means of concealed screw and shaped part.
固定方式：采用暗式螺钉和异形件方式固定。
Fixing mode: it is fixed by means of concealed screw and shaped part.
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