| 活化 activation radioactivation |
| 活化作用 activation |
| 活化分析 activation analysis |
| 活化剂 activating agent |
| 活化吸附 activation absorption |
| 活化处理 activating treatment |
| 活化污泥法 activated-sludge method |
| 活化炉 activation furnace |
| 活化能 activation energy |
| 活化酶 activating enzymes |
| 活受罪 have a hell of life |
| 活口 a survivor of a murder attem... |
| 活口扳手 shifting wrench |
| 活叶文选 loose-leaf literary selectio... |
| 活吞 swallow sth. raw and whole |
| 活命 earn a bare living |
| 活命之恩 indebtedness to sb. for savi... |
| 活命哲学 the philosophy of survival |
| 活命器官 vitals |
| 活地狱 hell on earth |
| 活埋 bury alive |
| 活埋恐怖 taphophobia |
| 活塞 plunger |
| 活塞下降行程 downstroke |
| 活塞圈 piston ring |
