focus (of an earthquake), seismic origin

• 震源

focus (of an earthquake), seismic origin的英文翻译是什么意思，词典释义与在线翻译：

英英释义

名词 focus:

1. the concentration of attention or energy on something

2. maximum clarity or distinctness of an image rendered by an optical system

3. maximum clarity or distinctness of an idea

4. a central point or locus of an infection in an organism

5. special emphasis attached to something

6. a point of convergence of light (or other radiation) or a point from which it diverges

7. a fixed reference point on the concave side of a conic section

动词 focus:

1. direct one's attention on something

2. cause to converge on or toward a central point

3. bring into focus or alignment; to converge or cause to converge; of ideas or emotions

4. become focussed or come into focus

5. put (an image) into focus

focus (of an earthquake), seismic origin的用法和样例：

例句

1. Airgun is an important active seismic source.
   摘要气枪震源是一种重要的人工地震震源。
2. The focus of the earthquake is eighty miles from our city.
   这次地震的震源在距我市八十英里的地方。