在化学教学中引入多媒体，将为传统教学注入一种活性催化剂。合理应用多媒体教学，将大大提高教学效果。
The education activity is affected more and more by information technique. We should apply multimedia education and it will improve education effect.
实验表明该催化剂催化效果好，不污染环境，是一种环境友好的催化剂。
The experiment show that the catalyst had good catalytic effect on the reaction and no pollution, so friendly to environment.
G 1是一种多效催化剂，净化效果优于原用的氧化锌脱硫剂。
G1 is a multifunction catalyst and purified effect surpassed the old ZnO desulfurizer.
G 1是一种多效催化剂，净化效果优于原用的氧化锌脱硫剂。
G1 is a multifunction catalyst and purified effect surpassed the old ZnO desulfurizer.
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