The utility model relates to an auxiliaryaccessory used for production of a ductile pipe casing enterprise, in particular to a novel supporting wheel for supporting a cast pipe to rotate.
本实用新型涉及球墨铸管企业生产用的辅助配件，特别指一种支承铸管转动的新型托轮。
2
As a result, we can supplement a words grammatical meaning if it is followed by accessory word and auxiliary verb.
于是我们可以通过在词之后接续助词、助动词这一手段来补充词的语法意义。
3
Therefore, what are accessory word and auxiliary verb?