activity job活动作业activityn.活动；活跃vt.表演adj.厉害activity- based cost作业成本Activity Assembly Area作战集结地域activity sludge method活性污泥法activity of edge layer边缘层活动activity-based study活动学习activity concentration放射性浓度activity of daily life日常生活能力activity participation活动的参与性Activity Reorder Point活动重新安排点activity of volunteers志愿者活动

1. Commercial scale tests also show a very high rate of desulphurization with the use of the active lime powder.
   工业实验表明用活性石灰粉可得到良好的脱硫率。