Conclusion the water fountain contamination already became a sanitation issue which should not be neglected, there are hidden safety trouble in directly drinking purified water and mineral water.
结论饮水机污染已成为不可忽视的卫生问题，所谓纯净水、矿泉水等直接饮用存在安全隐患。
Analysis of safety hidden trouble in subway construction this paper, find out the main ways to strengthen the management of the subway construction site.
本文分析地铁施工中的安全隐患，从中找出加强地铁施工现场管理的主要途径。
To expound OA system of enterprise is important, safety hidden trouble in use, ought to adopt safety strategy: safety keeping away means, safety manage and safety authentication.
阐述企业办公自动化系统的重要性，使用中的安全隐患，以及应该采取的安全策略：安全防范手段、安全管理和安全认证。
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