扬声器。耳机胶盖。传声器及话筒特性表。
Tabular layouts of article characteristics for loudspeakers, receiver capsules, microphones and transmitter capsules.
本文介绍油隔离泵阀箱渗漏的原因，能过对阀盖O型圈沟槽的改进及采取乐泰密封胶替代牛油盘根进行密封，解决了阀箱渗漏的问题。
This paper introduces the cause of the seepage in valve box of oil isolation pump, and solves the problem of the valve box seepage by way of the improvement of die slot in O - ring and seal material.
宽幅厚胶板市场前景十分广阔，广泛应用于橡胶铺地板材、橡胶输送带盖胶等生产、生活领域。
It is significant to study its basic theory because Screw Die has advantaged superiority in producing wide and thick rubber sheet.
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