Objective To study the application of perfluorocarbon in corneal metaphase preservation.
目的 探讨氟碳在角膜中期保存中的应用价值。
Just as the prophase, metaphase and anaphase of Ming Dynasty, the research of Su Shi' s prose during that time can accordingly be divided into three phases, called the period of smooth development, transition and prosperity.
明代的苏文研究大致可以分为平静发展期、变化过渡期和全面繁荣期,大致与明代的前期、中期、后期相对应。
A summary report of medium-term outlook for global fertilizer demand,supply and trade during the period of 2006～2010 is presented.
本文是2006～2010年全球肥料需求、供应及贸易中期展望的摘要报告。