1·Overexposure to ultraviolet ( UV) radiation, such as from sunlight, tanning booths, or sunlamps.
过度暴露于紫外线（UV）辐射下，如阳光，晒黑机，或日光灯。
2·Local exhaust ventilation or other engineering controls are normally required when handling or using this product to avoid overexposure.
使用时避免过度暴露，必要时使用当地抽风系统或其它工程控制。
3·Sunburn is due to overexposure of the skin to ultraviolet rays of the sun or a sun lamp.
晒斑缘于皮肤对太阳中紫外线的过度暴露。
4·Overexposure to vapor, dust or mist may aggravate existing respiratory conditions, such as asthma, bronchitis, and inflammatory or fibrotic respiratory disease.
过度暴露于蒸气，尘埃或雾气可能会加重原有的呼吸条件，如哮喘，支气管炎，炎症或纤维化呼吸系统疾病。