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- Based on theory analysis, this paper establishes the ideal curve model of Radon activity concentration, which is controlled by the mechanical strain during an earthquake. 通过理论分析,提出了一次孕震过程中随机械裂隙变化的氡浓度变化理想曲线模型。
- Based on theory analysis,this paper establishes the ideal curve model of Radon activity concentration,which is controlled by the mechanical strain during an earthquake. 通过理论分析,提出了一次孕震过程中随机械裂隙变化的氡浓度变化理想曲线模型。
- The office has been humming with activity. 办公室一直忙着搞活动。
- The threat of war has depressed business activity. 战争的威胁使经济萧条。
- There has been a lot of activity in the town today. 今天市中心相当热闹。
- The town was humming with activity. 该市镇生气勃勃,呈现一片热闹的景象。
- Stamp collecting is my favorite activity. 集邮是我最喜爱的消遣。
- The store was a scene of great activity. 这家商店顾客盈门。
- He once engaged in anti-government activity. 他一度从事反政府的活动。
- The office is humming with activity. 办公室里一片忙碌。
- Where does the indoor radon come from? 室内氡气是从哪里而来?
- How does radon affect the human body? 氡气对人体有什么影响?
- A center of interest or activity. 中心兴趣或活动的中心
- Showing no optical activity in polarized light. 无旋光的极化光下无光学反应的
- Radon is the daughter of radium. 氡是镭的子体。
- An increase, as in movement or business activity. 进步,改进,改善运动或商业活动的进步或兴隆
- A radon progeny continuous monitor was developed. 本工作研制氡子体连续测量仪。
- Indulgence in or pursuit of sexual activity. 纵欲; 追求肉欲对性行为的放纵或追求
- The phenomena associated with volcanic activity. 火山现象与火山活动有关的现象
- A range of endeavor or activity; a province. 范围努力做 ... 的范围或活动范围; 范围