本单元组的机器操作员操作多功能过程控制机械或单一功能的机器，融化，形成，切断或完成平板玻璃，玻璃器皿，酒瓶，玻璃及其他玻璃制品。
Machine operators in this unit group operate multi-function process control machinery or single function machines to melt, form, cut or finish flat glass, glassware, bottles, and other glass products.
本文报导了用动态光弹法记录的沿两种玻璃形成的界面上超声脉冲的传播过程。
The propagation process of ultrasonic pulse along solid-solid interface is recorded by the dynamic photo-elastic method in this paper.
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