求翻译：钼酸铵、硫酸。工厂共有90名员工，生产线上每班的操作人员有5～7人，包括多膛炉生产线和钼酸铵生产线，三班倒作业。是什么意思？

Ammonium sulfate. A total of 90 plant employees, the production line operator class 5 to 7 people, including multi-chamber furnace production line and ammonium production line, operating three shifts.

Ammonium molybdate, sulfuric acid. A total of 90 staff, factories on the production line operating personnel in each class there were five to seven people, including multi-barrel stove production lines and molybdenum acid ammonium production lines, operating three shifts.

Ammonium molybdate, sulfuric acid.The factory altogether has 90 staffs, on the production line each class's operator has 5~7 people, including multi-hearth production line and ammonium molybdate production line, three shifts work.

Ammonium molybdate and sulfuric acid. Plant a total of 90 employees, production line operators in each class there are 5~7 people, including multiple hearth furnace production line and ammonium molybdate production line, three shifts working.

Molybdenum acid ammonium, sulfuric acid. There are 90 staff in all in the factory, the attenbants who produce the per tour above line have 5-7, including many thoraxes stove production line and impractical ammonium production line of molybdenum, work in three shifts and work.