1、
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。
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2、
Lead in the plating layer of high voltage diodes on the basis of a zinc borate glass body.
以硼酸锌玻璃体为基础的高压二极管的电镀层的铅；
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