active group
活性基
活性基团
活性结构
作用分子团
补缺份子团
补缺分子团
辅基
Seismic active environment
group by group promotion physical education
Dengshan Group and Songmuwu Group
group dynamic and group development
Group measurement and group prevention
Mesozoic group and Paleozoic group
Normal group and morbidity group
tensioning group by group and step by step
2nd-Order Active Filter
302-A special active carbon for removing red-lustre
3-phase 4-wire active power filter
5th seismically active period
9-anthracene active substitute compounds
a combination solution of the active and passive method to reduce noise
A New Design of Hybrid Active Power Filter
a new round of active fiscal policy