这种材料吸收了特定的光线，人的肉眼是感受不到比较微弱的光线，就好像物体不存在一样。

Since particular light spectrum is absorbed by this material, the remain light is so weak that it cannot be felt by human eyes, then object itself disappears from view as if it doesn't exist.

youdao

随着铁靶功率的增加，透射光谱的吸收边有微弱蓝移，透过率在可见光区超过75%。

With the increasing of the Fe target power, the transparent of the coatings showed low blue shifts with the transmittance within the visible range being up to 75%.

youdao

随着铁靶功率的增加，透射光谱的吸收边有微弱蓝移，透过率在可见光区超过75%。

With the increasing of the Fe target power, the transparent of the coatings showed low blue shifts with the transmittance within the visible range being up to 75%.

youdao