Bohemian glass

• 玻希米亚玻璃,硬玻璃

Bohemian glass的用法和样例：

例句

1. The diode chip is coated with a thin layer of hard glass which eliminates the need for a hermetically sealed package.
   二极管片涂上一薄层硬玻璃，所以无需再用密封的管壳。