基本解释聚甲醛同根派生 polyformaldehyde相关词英汉例句Our factory lies in Fushun, Liaoning Province.We focus on the production of Teflon and polyformaldehyde steel-backed compound materials.本廠主要生産聚四氟乙烯鋼背複郃材料和聚甲醛鋼背複郃材料。polyformaldehyde更多例句