短語詞組短語point bolt 地腳螺栓Back -bolt point-supporting glass curtain wall 背栓式點支玻璃幕牆improved focing point bolt 超前錨桿single point bolt 地腳螺栓focing point bolt support 錨桿支護twelve point bolt 十二角螺栓system focing point bolt 躰系錨桿focas point bolt 錨定螺栓twelve point head bolt 十二角螺栓頭螺栓 返回 bolt point