metaformaldehyde的用法和樣例：
例句
- Adance and process of metaformaldehyde production and productive conditions of metaformaldehyde to use natural gas as material were introduced.
介紹聚甲醛進展情況和工藝路線及我省利用天然氣深加工生產聚甲醛情況。 - Adance and process of metaformaldehyde production and productive conditions of metaformaldehyde to use natural gas as material were introduced.
介紹聚甲醛進展情況和工藝路線及我省利用天然氣深加工生產聚甲醛情況。
