澄清: 澄清1.(清亮) clear; transparent 短语和例子湖水碧绿澄清。 the water of the lake is green and clear.2.(弄清楚) clear up; clarify 短语和例子澄清事实 clarify some facts; 澄清误会 clear up a misunderstanding; 要求澄清 demand clar
Abstract : the authers has studied the phase cha racteristics and phase equilibri um of sda ( solvent - deasphalting ) of dagang residue - ic4 and dagang residue m ixed w ith some ccdo ( catalytic cracking decant oil ) - ic4 system under subcritical condit ions systematically 文摘:系统地研究了大港渣油-异丁烷体系及混有催化裂化澄清油的大港渣油-异丁烷体系在亚临界条件下,溶剂脱沥青过程的相特性及相平衡。