龙门架 meaning in English
gantry
portal frame
portal support
portal type frame
portal-type frame
straddler
Examples
- Crosscranes . generalities . terminology
龙门架.总则.术语 - Step 2 : install and position the compound frame which is fabricated according to the lifting design of shaft
第二步：将事先针对竖井吊装设计、制作加工完成的复合龙门架安装就位。 - According to the definitions of construction hoists , derrick and gantry hoists should be grouped into construction hoists . inspection items for these two kinds of hoists are presented in this paper
摘要根据施工升降机的定义，明确了井字架、龙门架物料提升机所属分类，并规定了详细的监督检验内容与要求。 - The hoisting of the girders was achieved by the combination of a hoisting machine with scaffolding . before the variant arch was moved into its place , scaffolds were set up under the place where the arch would be , and a clearance of 0
变异拱就位时，先在该处下方搭好脚手架，并把脚手架断开留出0 . 8m间隙，利用脚手架搭设龙门架，用手拉葫芦把梁提升到位。 - The automobile outline size - measuring machine is four meters in the width and height direction and the dragon gate type frame structure . the distance of movement in the perpendicular direction is 20 meters . small moving vehicles driven by step motor move along a track synchronously
汽车轮廓尺寸测量机为一宽度、高度均为4m的龙门式构架结构,其纵向进给长度为20m ;由步进电机驱动移动龙门架小车沿同步导轨运动。