The Chemistry and Camera instrument, seen above before a recent test firing at Los Alamos National Lab in New Mexico, USES a pulsed laser beam to vaporize a pinhead-size piece of material.

图片上是这件化学分析及摄像仪器在新墨西哥州洛斯阿拉莫斯国家实验室进行点火测试前拍摄的。

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Chemistry modification together with blend modification was effective for the modification of the block copolymer. Radiation modification by electron beam and ultraviolet were an important trend.

将各种化学改性方法和共混改性方法结合起来运用，有条件时进一步使用电子束或紫外光改性，是其重要的发展趋势。

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By bombarding the fossils with an infrared synchrotron beam a noninvasive way of analyzing a material's internal chemistry the scientists said they detected molecular traces of an organic protein inside the mineralized bones.

WSJ: Dinosaur Embryos Point to Rapid Growth