设有安全装置（人手进入红外线范围以内，机器自动停止）。

Ultra Red Light sensor are equipped for user friendly and safety(machine automatically stop when perators hand into the working area).

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WFC3的光谱范围从紫外线到近红外线，揭示了恒星不同的演化阶段，这使天文学家得以剖析星系的恒星形成历史。

WFC3's broad wavelength range, from ultraviolet to near-infrared, reveals starsat different stages of evolution, allowing astronomers to dissect the galaxy'sstar-formation history.

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这种新型相机利用红外线，3到6英尺(1到2米)的范围内对人眼不可见，从而避免多种物质带来的错误反馈。

The new camera, which USES infrared light that is invisible to the human eye at a distance of three to six feet, is intended to avoid many of these complications and false positives.

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