In this paper both lead borate sealing glasses and lead free phosphate sealing glasses are studied.
本文研究了含铅的硼酸盐封接玻璃和无铅磷酸盐封接玻璃。
No practicable substitutes for lead in the plating layer of high voltage diodes on the basis of a zinc borate glass body are available.
以硼酸锌玻璃体为基础的高压二极管的电镀层的铅的替代品仍然不切实际。
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