tread-board

希高翻译-国际贸易相关术语中英对照六十四 ... tre tree trustee treacle 糖浆 tread board 踏板 tread track 轮距 ...

http://www.ptsgi.com/chi... ... "防雪栏椿"," Snow hurdle" "防滑踏板"," Tread board" "防烟装置"," Smoke preventing device" ...