With gasketed connections, the material of construction of the washer is important, both for compatibility with the gases in use and for its mechanical properties.
对于衬垫接头，垫圈的结构材料对于使用的气体的相容性和垫圈的机械性能都是很重要的。
Besides cement dose, mud content and construction control, aggregate grade is one of the important factors which affect the shrinkage properties of cement stabilized material bases.
除了水泥剂量、含泥量和施工控制等因素外，集料级配是影响水泥稳定粒料基层收缩特性的重要因素。
The physical and mechanical properties, structure design and construction technology of the mixing material of the fly ash and lime applied in the foundation of airfield road are presented.
论述了粉煤灰、石灰混合料在机场场道基层中应用的物理力学性能、结构设计和施工要点。
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