添加剂：在溶液中含有的能改进溶液电化学性能或改善镀层质量的少量添加物。
Additives: in containing the solution can improve the solution or improve the electrochemical properties of the coating quality a few additives.
主要原料为高铝熟料、镁砂、石墨或少量添加物，采用高压成型，低温热处理制得。
It is made of high aluminium content grog, magnesite and graphite with a little additives, shaped at high pressure and then through heat treatment at low temperature.
结果证明，加入少量高分子活性添加物可以提高馏分重量收率3个百分点以上。
Results showed that, the high boiling fraction yield in-creased by 2-3 percentages in weight by adding a small amount of high molecular active additive.
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