非塑粉
以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译
无塑性粉末
Inside the plastic case is a non-toxic aluminum powder, mixed in with some plastic beads to keep the powder flow smooth and consistent.
FORBES: How Does An Etch A Sketch Work, Anyway?
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。