sieve area

With high specific surface area, ordered pore structure, facilely tailorable pore size ( 2-3nm) excellence, Mesoporous molecular sieve MCM-41 often use macromolecule compose field, and can used to the converge reactivity reactor.

介孔分子筛MCM-41具有比表面积高、孔道结构规则及孔径分布均匀（约为2～3nm）等优点，可用在高分子合成领域，特别是聚合反应的反应器。

They had fearfully marked negative correlation between the ratio of phloem area/ transect area and length of node; fearfully marked positive correlation between sieve tube density and length of node;

韧皮部面积/横断面积比值和筛管密度与节间长度分别呈极显著负相关和正相关；

The pillared montmorillonites could be used as catalysis of molecular sieve and environmental materials for their good properties such as large surface area, adjustable pore structure, strong acid activation and so on.

柱撑蒙脱石多孔材料因其具有比表面积大、孔结构可调且分布均匀、酸活性高等物化性质而成为新型分子筛催化材料及环保材料。