The text detailedly introduced crown block, running system, availability work period of bridge girder erection equipment and improve case for precast beams install.

详细介绍了对双导梁式架桥机天车、行走系统、有效工作长度及预制梁安装就位的改进情况。

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In-situ concrete walling, like precast concrete block walling, is being used more these days than years ago, mainly because of the speed of erection.

同混凝土块材墙体一样，近年来，越来越多的建筑都使用现浇的钢筋混凝土实墙体，主要原因是施工速度快。收藏。

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The plans will see the current farmhouse almost double in size along with the conversion of a stable block for staff accommodation, the creation of a pond and the erection of large hack pens where the birds learn to fly.

BBC: Sheikh's Borders falcon centre approved