英语语法分析

The influence of ammonium molybdate, cobalt sulphate, ammonium bifluoride, acidity of blackening bath, blackening bath temperature and time on film quality were studied.

研究了钼酸铵、硫酸钴、氟化氢铵、黑化液酸度、黑化液温度及时间对膜质量的影响。