Basic principles and methods in applicable blur maths were applied to evaluate the hazards of the major productive toxicants like nickel, cobalt, copper, vitriol fog, SO_2 and chlorine.
应用模糊数学的基本原理和方法，对冶炼厂镍、钴、铜、硫酸雾、二氧化硫、氯气等主要生产性毒物的危害进行综合评价。
It's well-known that famous scientist Edison in life spent a full-ten year and conducted about 50000 experiments to change an easily-eroded copper-vitriol battery into an accumulator.
大家知道著名的科学家爱迪生一生共花费了整整十个年头，经历五万次左右的试验，才把容易腐蚀的铜硫酸电池改造成蓄电池。
It's well-known that famous scientist Edison in life spent a full-ten year and conducted about 50000 experiments to change an easily-eroded copper-vitriol battery into an accumulator.
大家知道著名的科学家爱迪生一生共花费了整整十个年头，经历五万次左右的试验，才把容易腐蚀的铜硫酸电池改造成蓄电池。
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