At home and abroad, research on chemical composition of springs water is one of the hot problems.
泉水化学成分变化研究一直是国内外学者研究的热点问题之一。
On the basis of analyzing the chemical character of underground hot water, the formation mechanism of the chemical composition and its genesis are discussed in this paper.
该文在分析地下热水化学特征的基础上，对地下热水化学成分形成机理及地下热水成因进行探讨。
In the production process, hot metals chemical composition, heating and coiling temperatures and continuous annealing conditions while being rolled, will affect properties of tin-plates.
生产过程中，炼钢的化学成分、热轧的加热与卷取温度及连续退火的工艺条件都会对镀锡板的性能产生影响。
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