In this paper, we obtained the formula of Nominal ocular hazard distance in the harm theories of lasers to eyes, and the principle of the nonlinear optical protective material was introduced.

根据激光对人眼损伤机理，给出了标识危害距离公式，并阐述了非线性光学防护材料的防护原理。

youdao

If people must walk a considerable distance to a latrine, they will defecate in a more convenient location, regardless of the health hazard.

否则，人们不会考虑健康的风险，不会走相当长路上厕所，而是就近解决问题。

youdao

Hazard had one final chance for Chelsea, but blasted a shot high from distance in the third minute of injury time.

WSJ: Man City Beats Chelsea to Reach FA Cup Final