Use a laser pen to irradiate one fly's compound eye.

用激光笔照射一只苍蝇的复眼。

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The pulsed carbon dioxide laser was used to irradiate the flexor surface of the right forearm in this experiment. The incidence of cutaneous erythema and the time of erythema occurrence were observed.

本实验用脉冲二氧化碳激光辐照人前臂屈侧皮肤，观察皮肤红斑发生率和红斑出现时间。

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Once the cancerous area is precisely targeted, only the intensity of the laser radiation needs to be turned up in order to irradiate, or burn off, the tumor.

ENGADGET: Researchers develop femtosecond laser that can diagnose, blast cancerous tumors