The utility model discloses a multifunctional soil preparation machine, including suspension bracket, working component, transmission device and plastic membrane covering device.
本实用新型公开了一种多功能整地机，其包括悬挂架、工作部件、传动装置及覆膜装置。
The double helix-type hollow fiber film device of the utility model has the advantages of high mass transferring efficiency, large feed liquid handling capacity and simple preparation and the like.
本实用新型设计的双螺旋式中空纤维膜器，具有传质效率高，处理料液量大，制备简单等优点。
The double helix-type hollow fiber film device of the utility model has the advantages of high mass transferring efficiency, large feed liquid handling capacity and simple preparation and the like.
本实用新型设计的双螺旋式中空纤维膜器，具有传质效率高，处理料液量大，制备简单等优点。
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