Multi-stage functional module coupled and complemented diaphragm and preparation method thereof
The invention provides a multi-stage functional module coupled and complemented diaphragm and a preparation method thereof. According to the invention, multiple stages of functional modules of the diaphragm are effectively constructed and functions and effects of the modules are coupled and compleme...
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Main Authors | , , , |
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Format | Patent |
Language | Chinese English |
Published |
10.05.2019
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Subjects | |
Online Access | Get full text |
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