石せき英えいガラス

noun

quartz glass; fused quartz; fused silica

Technical term for glass made from pure silica, known for high heat resistance and optical clarity. Used in laboratory equipment, optical fibers, and semiconductor manufacturing.

• 石せき英えいガラスは耐たい熱ねつ性せいに優すぐれている。

  Quartz glass has excellent heat resistance.

• このレンズは石せき英えいガラスでできている。

  This lens is made of quartz glass.