用ammonium fluoride造句子,“ammonium fluoride”造句
来源:国语帮 2.28W
The silica slurry filtration, washing, get silica and ammonium fluoride solution, ointment, ointment of silica was washed, dried silica products;
Manufacturing technology of ammonium fluoride and white carbon black from fluosilicic acid by-produced in phosphate fertilizer industry