顶夹，一种头饰品，用于固定发型的夹子。
对框架柱顶夹渣层用高强细石混凝土粘钢板套箍等方法加固，提出了具体的加固方法和注意事项。
Mehods and issues to be concerned in the strengthening of the slag layer in the top of the frame column with high strength fine stone concrete and steel plate hoop.
夹矸层的厚度及物理力学性质对顶煤的应力分布和移动有重要影响；
The thickness and physics mechanics nature of rock parting have important influence on the stress distribute and its movement of top coal.
玻璃纤维增强塑料夹砂管（离心浇铸工艺）作为顶管管材运用于顶管工程中的设计、施工介绍。
Glass fibre reinforced plastic mortar pipe(Centrifugal casting process)is introduced to be as jacking pipe material used in the design and construction of one jack engineering project.
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