词汇	draw step
释义	draw step 踏併步
随便看	square grooved weld square grooved welding square groove weld square-groove weld square grouped piles foundation square guide pillar square hall square ham Square-ham square harrow squarehead square-headeds square headed screw square headed window square-headed window square head flat point set screw square-head nut SQUARE HEAD PIN CHAIN SHACKLES squareheads square heads square head screw square-head screw square head screw with collar square head setscrew square head set screw