Quality Certificate to show actual results of tests to be made, on chemical compositions, mechanical properties and all other tests called for by the Standard stipulated heron.
品质证明书内应列入根据合同规定的标准进行化学成分、机械性能及其他各种试验结果。
As proved by study on chemical compositions, thermoelectricity and micro-elements compositions of galena, it is another important mineral with rich gold and silver contents except pyrite.
对方铅矿的化学成分、热电性和微量元素组成的研究表明，方铅矿是除黄铁矿外的另一种重要的富金、银矿物。
This paper describes the features of technology, mineral compositions, chemical components of four plastic Kaolinitic clays, as well as their action on ceramic batch composition.
本文阐述了这四种高岭石质塑性粘土的工艺性质、矿物成分、化学成分特征以及它们在陶瓷配方中的作用。
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