2) generation and prevention
产生及防止
4) waste prevention
废物产生预防 WP
6) disaster early warning and escape system
防灾预警及逃生系统
1.
When the tunnel passes through the upper proximity area with plenty of runoff sources,the three key links in construction must be held:conducting advance water probing,blocking up water grouting in the rich water area and establishing the disaster early warning and escape system,so as to ensure the safety in construction.
隧道穿越上部临近区域存在大量补给水源的区域时,施工中必须把握3个关键环节,即进行超前探水,对富水区进行注浆堵水,并建立防灾预警及逃生系统以确保施工安全。
补充资料：产生
1.生育;分娩。 2.出产。 3.由已有的事物中生出新的事物;出现。 4.出生。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条