硬质玻璃管，一般用于有气体、固体参与的化学反应，可直接由酒精灯或酒精喷灯加热。
应用洁净硬质玻璃管制成细菌微量反应管。
The microscopic reaction tubes of bacterium were prepared by using pure and hard glass tubes.
介绍了采用碳化铬硬质合金制作质谱计和表面分析仪器中的双曲面玻璃管的成形模具。
The present paper has described the die made by chromium car - bide for forming mass spectrometer needle and double curved surface glass tube in surface analyzing instrument.
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