Rivulets of water ran in through the leaks.小股的水流通过漏洞流进来.Rivulets of sweat streamed down his cheeks.津津汗水顺着他的两颊流下.It was gray and dusty, and sweat had streaked long rivulets across his cheeks.那张脸是灰糊糊的,满是尘土, 汗水在两颊上划着一条条长沟....
MgO改性提高对二乙苯选择性最为明显.Silylation, P modification and MgO modification can improve p - DEB selectivity greatly.指出高效、节能的分子筛吸附分离法是分离二乙苯的最佳选择.The best choice for separating diethylbenzene is the adsorptive separation by zeolite...