Question: which kind of equation missing in this system

December 29 2013 rit 200
Maple 15

0

https://drive.google.com/file/d/0B2D69u2pweEvMV92SGhtRGZONFk/edit?usp=sharing

a error and code in this attachment mw

i can pdsolve it, but numeric pdsolve it get error

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