But using light to process information is tricky, requires exotic materials and lasers that demand more power than conventional transistors.

但是利用光来处理信息还很复杂，要求有合适的材料和需要有比传统晶体管能力更强的激光器。

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Materials and Methods:40 patients were studied using FLAIR sequence and conventional spin echo(SE). The mode of presentation of the lesions were compared.

材料与方法：对40例脑部受检查者分别使用FLAIR序列及常规自旋回波（SE）序列进行对比分析。

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Diffraction, scattering or absorption experiments on materials using synchrotron X-radiation can provide new and more detailed structural information than using conventional X-ray sources.

使用同步辐射X射线进行材料的散射、衍射和吸收实验要比用一般X射线源的实验能提供新的、更精确、更详细的结构信息。

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