亚洲天堂在线看 I 亚洲中文字幕久久精品蜜桃 I 综合激情亚洲丁香社区 I 天天做天天爱天天爽综合网 I 天天影院色 I 日剧再来一次第十集 I 久久影视久久午夜 I 国产日产欧产精品网站 I 国产高清视频网站 I 日韩亚洲天堂 I 欧美 变态 另类 人妖 I 黄色一级片网站 I 国产91网 I 婷婷夜夜 I 91久草视频 I 最新国产精品拍自在线播放 I 激情午夜视频 I 18禁男女无遮挡啪啪网站 I 久久精品手机视频 I 欧美高h视频 I 舌奴调教日记 I 毛片av在线播放 I 中文字幕av观看 I 日本少妇翘臀啪啪无遮挡软件 I 亚洲欧美另类激情 I 色一区二区 I 久久中文精品无码中文字幕 I 精品国产一区二区三区麻豆仙踪林 I 国产精品女人呻吟在线观看 I 猫咪www免费人成人入口 I 国产乱子伦三级在线播放 I 中日韩男男gay无套 I 99久久综合伊人 I av色片在线观看 I 日本怡红院免费全部的视频

　　1.Production process
Whether toxic and harmful gases or chemicals are used in the production process can cause significant harm to the human body.An excellent engineer will consider these issues when planning and designing a cleanroom,and set up a sufficiently powerful exhaust system to promptly exhaust the generated gases indoors.As long as the exhaust system is installed properly,the fan power is sufficient,and harmful substances can be discharged in a timely manner,the harm to the human body will be greatly reduced or even eliminated.
2.Protective measures
When working near high radiation equipment,appropriate protective measures must be taken to avoid personal injury.
3.Strictly control the number of people
A dust-free workshop is a closed space that relies on air conditioning units to supply air according to the designed air volume.The number of people that can be accommodated in the dust-free workshop is limited.If there are too many hands,it may cause insufficient oxygen,making people feel dizzy and nauseous.
4.Fire evacuation
A reasonable and scientific dust-free workshop should be equipped with a fire protection system as required and ensure smooth evacuation routes.When an emergency occurs,take immediate response measures and evacuate personnel urgently.