由于饮用水砷中毒已成为危害整个印度次大陆的严重问题，生物传感器作为一种低成本的早期预警系统可以检测可能对人类健康构成威胁的饮用水。
Arsenic poisoning from drinking water has become a serious human health threat throughout the Indian subcontinent and a bio-sensor may serve as a low-cost early-warning system.
早期开发的地震预警系统要在公立学校开设课程进行教育，另外要解决未能预报的问题。
T4. An early warning system for earthquakes would require a major campaign of public education. Then, another problem is the possibility of false alarms.
早期开发的地震预警系统要在公立学校开设课程进行教育，另外要解决未能预报的问题。
T4. An early warning system for earthquakes would require a major campaign of public education. Then, another problem is the possibility of false alarms.
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