The determination methods of using optics and PGC to the styrene content in copolymper and its products were related. 叙述了应用光学法和裂鲜色谱法对丁苯橡胶中苯乙烯含量的测定方法。
This article reports firstly the characteristics of histology structure of newborn Galiba calfskin by the optics microscope. 首次报道了应用光学显微镜研究的新生尕里巴牛犊皮皮板的组织结构特点。
