GL. 基本例句 医最长度测量胎 The flow resistance of polypropylene increases with the addition of carbon black, titanium dioxide and phthalocyanine blue, bat decreases with the presence of GL orange and BR red. 实验结果表明，添加炭黑、钛白及酞菁蓝等颜料后，会增加聚丙烯的流动阻力； 而添加 GL橙及 BR红后，聚丙烯流动阻力略有降低。 cnki