alkaline earth metal compounds 碱土金属化合物
In the paper, the test results about fluorine retention in the alkaline-earth metal compounds combustion were studied to develop high-efficient fluoride retention additive.
为了开发高效燃烧固氟剂，通过实验研究了碱土金属化合物的燃烧固氟效果。
The experimental results showed that boiling water extraction is suitable for testing soluble hexavalent chromium compounds and weak alkaline extraction suitable for amphoteric metal coatings.
实验表明，沸水萃取法适用于可溶性六价铬的萃取，弱碱萃取法可用于两性金属涂镀层。
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