... shoal浅滩 shoalbank砂洲 shock禾束堆 ...
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In order to prevent generating thick biogas in the shoalbank ecosystem to cause explosion, a silo and a movable cover are arranged, people may enter and detect to guarantee safe operation.
为防止含生物膜的砂洲生态系统内产生浓沼气引发爆炸，在该处设竖井 和活动盖，人可以进去检测，保证安全运行。
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