常見例句The determination methods of using optics and PGC to the styrene content in copolymper and its products were related.敘述了應(yīng)用光學(xué)法和裂鮮色譜法對(duì)丁苯橡膠中苯乙烯含量的測(cè)定方法。 返回 styrene-butadienerubber