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。
In this paper both lead borate sealing glasses and lead free phosphate sealing glasses are studied.
方法应用分光光度法测定有磷酸盐及无磷酸盐存在时，HPAP在胍变性过程中的活力变化。
Methods Spectrophotometry was used to determine the changes of activity of HPAP during guanidine denaturation in the presence and absence of phosphate.
用研究的焦磷酸盐镀铜工艺代替氰化镀铜工艺作为过渡铜镀层的无氰镀工艺。
The process of cyanide copper electroplating is replaced by the proposed process of pyrophosphate electroplating copper on magnesium alloy.
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