polycyclic stele是什么意思

用法例句

Some boundary value problems for elliptic systems of complex equations in biring domain;

多圆环柱域上椭圆型方程组的边值问题

Compared with common ZORBAX SB-C18,the results that separation efficiency of special column for hydrocarbon polynuclear on 16 kinds of hydrocarbon polynuclear were more than ZORBAX SB-C18.

运用多环芳烃专用柱HX736091(4。