hard impervious material
常见例句
- " Glass: Solid material, typically a mix of inorganic compounds, usually transparent or translucent, hard, brittle, and impervious to the natural elements ("vitreous properties").
玻璃：硬的物質，其典型爲無機化郃物的混郃物，通常爲透明或半透明，堅硬，易碎和不能爲自然元素所穿透（玻璃特性）。 返回 hard impervious material