The cross section of the passage is a regular or irregular plane polygon, and then the specific surface area is large and the mass transfer efficiency is high.
通道横截面为规则或不规则平面多边形，因而比表面积大、传质效率高。
2
In this passage, tries to compare the small-amount method with regular-amount method in the organic chemistry experiment and makes further analysis.
本文尝试着以个案的方法将有机化学实验的微量法与常量法进行比较，并作进一步分析。
3
Our planet could very well be about to go through massive regular earth changes once again as soon as 2003 as a result of the passage of our 10th planet through our immediate solar system.