light ageing properties of poly(vinyl chloride)(pvc) by the carboxylic ester rare earth salt and the organotin have been compared by artificial ageing test.
用人工老化的方法比较了羧酸酯稀土和有机锡对聚氯乙烯(pvc)的光老化稳定作用。
artificial ageing is one of the hi-tech means to forge or alter documents.
人为老化是伪造或变造文件的高科技手段之一。
moreover, after extruding the alloys can improve their plasticity if artificial ageing is processed.
挤压后直接人工时效,可有效地提高合金的塑性。
effects of artificial ageing on the hardness distributions and strength were analyzed for 6063 aluminum alloy joints welded by varying heat inputs.
对不同焊接热输入下的6063铝合金焊接接头进行人工时效,分析其硬度分布和强度的变化。
the mechanism of artificial ageing are paper ageing and color ageing.
文件人为老化的机理有纸张老化机理和色料老化机理。
tdg-ms was applied to study the composition changing of blue gel pen inks on paper during artificial ageing at the time of this study.
采用热重-质谱联用(tdg-ms)技术研究纸张上蓝色签字笔墨水在人为老化过程中组分的变化情况。
by so doing, period of artificial ageing resistance for latex coating could extend to over 1000hrs.