c1850Rudim. Navig. (Weale) 151 Spla-boards, boards or planks fixed to an obtuse angle, to throw the light into the filling-room of a magazine.
英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。