张为光 ( Wei-Kuang Chang ); 陈正兴 (Cheng- Hsing Chen ) ，33-44 4 应用克利金和贝氏法辨识非均质局限含水层之参数结构
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但你也许还想去拍张X光片，为保险起见。
You might still want to go for an X-ray, however, just to be on the safe side.
曾经有一个男子请求我为他和他临终的父亲拍一张合影，我利用自然光为他们拍了照。
Once a man asked to have his photo with his dying father, and I photographed them in natural light.
一秒钟内可拍摄610万张照片，快门速度为440万亿分之一秒，在这么短的时间内光也只前进了不到一厘米。
It can take 6.1 million pictures in a single second, at a shutter speed of 440 trillionths of a second. Light itself moves just a fraction of a centimeter in that time.
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