Investigators said that the hostage-takers were highly trained and organised - laying mines in the school corridors and around the gym, and bringing with them sniffer dogs and gas masks.
调查人员说，人质劫持者受过严格训练，组织严密——在学校走廊里和体育馆附近都埋好了地雷，并带来了嗅探犬和防毒面具。
As well as performing minesweeping missions, the Type 6610 could also be used for mine laying role, carrying a mine rail and 8 ~ 10 naval mines on its stern deck.
除了履行扫雷任务，6610型也可以用于水雷布设，在舰尾甲板上装有一具布雷导轨和8 ~ 10枚水雷。
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