This paper mainly describes the mineral composition, structural behaviour of the weak seam in dam foundation, and its chemically solventaction and variation under long term infiltration of water .
本文着重阐述了软弱夹层的物质组成、结构特性及其在长期渗水作用下的化学溶失作用和变化趋势。
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This paper emphasizes to analyze the principium of the ink jet printing, the dye chemistry theory, solvent chemistry theory and the amphoteric and nonionic 's action mechanism.
论文的理论部分着重分析了喷墨印刷技术的原理、染料化学理论、溶剂化学理论及表面活性剂的作用机理。
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Heat set ink: Letterpress and offset inks which dry under the action of heat by evaporation of their high boiling solvent.