The round tube is composed of a round tube body and a tube bottom, and the root supporting frame is composed of a round layer net and a layer net supporting frame.
圆桶由圆形桶体和桶底构成，根 系支架由圆形层网和层网支架构成。
The round tube is composed of a round tube body and a tube bottom, and the root supporting frame is composed of a round layer net and a layer net supporting frame.
圆桶由圆形桶体和桶底构成，根 系支架由圆形层网和层网支架构成。
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