1) ballpoint pen factory
圆珠笔厂
4) refill for ball-point pen
圆珠笔芯
5) ballpoint pen ink
圆珠笔油墨
1.
Key work:optimization;orthogonal design;c apillary electrophoresis;ballpoint pen ink;buffer syste
实验结果表明,该体系作为毛细管电泳分析蓝色圆珠笔油墨缓冲运行液的最佳配比为:55mmol/L硼砂～40mmol/LSDS溶液和40%(V/V)的乙腈,溶液为pH9。
6) ballpoint inks
圆珠笔字迹
1.
In the paper, techniques for dating of ballpoint inks, such as ink library, ink tagging, solvent extraction, thin layer chromatography, gas chromatography, liquid chromatography, mass spectrometry, microspectrophotometry, infrared spectrometry and Raman spectrometry, were introduced and evaluated.
本文追述了油性圆珠笔问世以来,字迹书写时间的检验发展过程;总结了静态法,如标准样品比对法和基准物标记法,动态法,如如溶剂萃取法、色谱法、质谱法和光谱法用于鉴定圆珠笔字迹书写时间的研究成果;展望了非破坏性方法在鉴定书写时间上的发展趋势。
补充资料：2030mm冷轧厂宽带钢轧钢厂鸟瞰图(上海宝山钢铁总厂)
2030mm冷轧厂宽带钢轧钢厂鸟瞰图(上海宝山钢铁总厂)
自瞬 2030mm冷轧厂宽带钢轧钢厂鸟瞰图(上海宝山钢铁总厂)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条