接触激光辐射的阈限值(TLV)是指在该条件下几乎所有的工人可以接触而不发生有害作用的容许值。阈限值只能用作控制接触的依据,而不应把它当作划分安全和危险水平的精确界线。这些数据是以当前最佳的实验研究资料为基础而制订的。 极限孔径 The threshold of contact with laser radiation (TLV) refers to the allowable value that almost all workers can reach without harmful effects under the conditions. Threshold limits should only be used as a basis for controlling contact and should not be treated as a precise boundary that divides safety and hazard levels. These data are based on the best current experimental research data. Limit aperture