The supporting seat has two types: suspended type or supporting type.
支承座有悬挂或支承式二种。
Three residue base of roads has two types of suspended type and dense type.
道路三渣层有悬浮式和密实式二种类型。
The utility model relates to an aerated pipe joint and a suspended type microporous aerated pipe made of the joint as well as a pipe joint thereof.
本实用新型为一种曝气管接头以及使用该接头制成的悬挂式微孔曝气管及其管接头。
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