地脚螺丝
dì jiǎo luó sī
- 名foundation bolt
地脚螺丝-
柴油机地脚螺丝安装孔灌上干河沙。
Fill the dried river fine sand into the foundation screw mounting holes of the diesel engine .
-
液压站在安装前应首先作地基平整处理，并打好地脚螺丝的预埋坑。
Prior to installation of the hydraulic station , firstly level the foundation , and dig the embedded pits for the foundation bolts .
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将烘干后的细河沙放在柴油机旁，以便放入地脚螺丝安装孔内。
Put the dried river fine sand beside the diesel engine , so as to be conveniently filled into the foundation screw mounting holes .