| 释义 |
crown glassn.（名词）- A soda-lime optical glass that is exceptionally hard and clear, with low refraction and low dispersion.冕玻璃：一种极其坚硬、高度透明的、低折射、低色的散碱石灰光学玻璃
- A form of window glass made by whirling a glass bubble to make a flat circular disk with a lump left in the center by the glass blower's rod.冠状玻璃：一种用玻璃吹制加工并使玻璃气泡旋转形成中心隆起的扁平圆盘而制成的窗玻璃形式
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