gravity bag filter 重力袋滤器
Gravity bag filters load solid waste efficiently and are easily cleaned. These bags are inexpensive, very durable and eliminate the need for post mechanical filtration with many applications.
重力砂滤器可以简单高效的清洁固体废弃物。袋子具有价格低廉、耐用的特点，并可以减少后机械过滤的需要。
Filling operations for drains of Ruoergai arctic-alpine wetland have such four types as damming with bag filling with earth and rock, earth and rockfill dam, concrete gravity dam and model dam.
若尔盖高寒湿地排水沟壑填堵分为土石袋筑坝、土石坝、混凝土重力坝和模板坝四种类型。
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