... 其他健康食品 » Other health food 沼气池 » Methane-generating pit 你永远是我的唯一。 » You will always be my only. ...
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cylinder methane-generating pit 圆筒形沼气池
abnormal state methane-generating pit 病态沼气池
methane-generating pit for farm household 农村户用沼气池
bamboo-weaved concrete methane generating pit 竹编水泥沼气池
·2,447,543篇论文数据，部分数据来源于NoteExpress
New type of Methane Generating Pit has been designed and studied. The Generator is Made of RM-PVC plastic plane.
为了探索农村小型、高效、使用方便的新型沼气池，对RM-PVC硬塑料沼气池进行了设计与研究。
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