Results The positive rate of TCD examination , DCCU, MRA , DSA and CTA were 71 %, 62 %, 60 %, 96 % and 92 % respectively.
结果VBI患者 TCD检查阳性率为71%, 颈部血管彩超阳性率为62%, 颅脑MRA阳性率为60%, DSA检查阳性率为96%,颅脑CTA阳性率为92%.
MMC-2 catalyst, a new DCC catalyst for increasing propylene yield developed by Research Institute of Petroleum Processing has been applied in the 650kt/ a DCCU located in Anqing Petrochemical Company.
介绍石油化工科学研究院新开发的高丙烯选择性催化裂解催化剂MMC-2在安庆分公司650kt/a催化裂解装置上的工业应用情况。
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