1·In the process of cleaning coffee, do not use hard brush scrub, but also to avoid the use of strong acid, alkali cleaning agent, so as to avoid scratching the surface of damaged coffee cup.
在咖啡杯的清洗过程中，严禁使用硬质的刷子刷洗，也要避免使用强酸、强碱的清洁剂，以避免咖啡杯的表面刮伤受损。
2·Ji 'nan Hengtong Co. workers to remind the user of the product manufacturers, with strong acid, strong alkali, heavy metal ions (such as aluminum, zinc, mercury, silver, iron, etc.) and is taboo.
济南恒通护工有限公司厂家提醒用户，本品与强酸、强碱、重金属离子(如铝、锌、汞、银、铁等)配伍均属禁忌。
3·In practice, asphalt-colloid smear was formed on copper electric parts and effectively purged by means of thermal neutralization with strong acid and alkali.
分析铜质导电零件沥青胶质油污的形成，在生产实际中采用强酸强碱热态中和法，有效地去除胶质油污。
4·Description: Cerium Hydroxide is insoluble in water and soluble in strong acid.
说明：氢氧化铈不溶于水，溶于强酸。
5·The degrading rate of dye brilliant red X-3B held high in strong acid and strong alkaline.
在强酸和强碱条件下，染料活性艳红x - 3b的降解率较高。