Orowan‚Äö√Ñ√∂‚àö√ë‚àö¬•s theory is related to

1.	Orowan‚Äö√Ñ√∂‚àö√ë‚àö¬•s theory is related to _________$
A.	Grain boundaries
B.	Weak crystal
C.	Slip band
D.	Gas pores
Answer» C. Slip band

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