英语语法分析

A methacrylic resin monomer mixture is filled in the cavity.

该模腔内注入甲基丙烯酸酯类树脂的单体混合物。

The polymer was prepared by copolymerizing vinyl sulfonate, methyl methacrylate(MMA) and methacrylic acid(MAA) in different proportions.

三元树脂由乙烯基磺酸酯、甲基丙烯酸甲酯（MMA）与甲基丙烯酸（MAA）按不同的配比共聚而成。

Methods:Silica gel tube adsorption and solvent desorption were used for sampling of methacrylic acid and analysis was performed by HPLC.

方法：以硅胶管采集空气中甲基丙烯酸，用甲醇解吸后高效液相色谱测定。