The sign reversal applies only to quantum numbers (properties) which are additive, such as charge, and not to mass, for example.
举例来说正负号只适用于附加量子数，例如电荷，而不是质量。
External additive can give flowability and charge stability to toner.
外部添加剂可以改变墨粉的流动性和电荷的稳定性。
Asphalt is selected as coking charge additive in the coking tests carried out respectively as per NSC and Sumitomo briquette coal blending processes.
选择石油改质沥青作炼焦煤料的添加剂，分别以新日铁和住友配型煤炼焦工艺进行了炼焦试验。
应用推荐