螺旋输送机本体由头节、中间节、尾节三种组成。

Ontology head screw conveyor section, the middle section, composed of the end of section three.

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螺旋输送机本体由头节、中间节、尾节三种组成。

Ontology head screw conveyor section, the middle section, composed of the end of section three.

youdao