how to find specific lines in a text file and replace them with other lines?

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sara kowsar 2018-11-15

关闭： Rik 2018-11-15

hello everyone...

i have a text file that attached . i want to find some lines that i don't know their position , and replace them with other lines.

lines that i want to remove them are:

**************************************************************

*Elset, elset=granulation, generate

1, 8393, 1

** Section: granulation

*Solid Section, elset=granulation, material=granulation

***************************************************************

and replace these lines:

*Elset, elset=Element-set1

** Section: Element

*Solid Section, elset=Element-set1, material=Element-num1

****************************************************************

Can someone help me ? thanks...

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