Characteristics of one plus one in the chain, flat top or install attachments can transport all kinds of organisms;

特点一，在链条顶面加一平板或加装附件后便可输送各种生物；

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Characteristics of one plus one in the chain, flat top or install attachments can transport all kinds of organisms;

特点一，在链条顶面加一平板或加装附件后便可输送各种生物；

youdao