safe exposure level

例句：

1. 1.The company has set a safe exposure level for the chemicals in their products.
   该公司为产品中的化学物质设定了安全接触水平。
2. 2. The worker was exposed to high levels of radiation at the construction site, which is considered a safe exposure level.
   该工人在施工现场暴露于高辐射水平，这被认为是安全的暴露水平。
3. 3.The safety regulations require that all equipment be checked and maintained at a safe exposure level.
   安全规定要求所有设备都应检查和维护在安全接触水平。