The material selection, mix-gradation design and construction technology for using iron tailings as pavement base are described in detail.
对铁尾矿做路面基层的材料选择、配合比设计和施工工艺进行了较详细的阐述。
A minute exposition of portable retractable guide ruler in its design conception, design drawing, whole structure, material selection, manufacture technology and advantages is fully comprehensioned.
详细阐述了便携式可伸缩校导尺的设计构思并给出其设计图样，介绍了该设计的整体结构、材料选用、制作工艺及优势。
The article details material selection, grouting technology and quality inspection in the treatment of defects in concrete of the permanent ship lock of Three Gorges.
针对三峡永久船闸工程混凝土缺陷的类型，介绍了缺陷治理选用的材料，并对灌浆工艺、施工注意要点、灌浆质量检验作了详细介绍。
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