wax crayon

1. Identify the component clearly, e.g.using a wax crayon or chalk, water-resistant coloured pen, adhesive tape, etc.
   使用蜡笔或粉笔、防水彩笔、胶带等工具清晰地标记相关部件。
2. The PIXE Measurement Method of Harmful Elements in Wax Crayon for Export
   用PIXE方法测定出口蜡笔中的有害元素

noun

1. writing implement consisting of a colored stick of composition wax used for writing and drawing

   Synonym:    crayon