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1. |
The necessary diameter (d) for thickness of plates (t) is ______ |
A. | d = 6*‚àöt |
B. | d =4*‚àöt |
C. | d =6*‚àö2t |
D. | d =4*‚àö2t |
Answer» B. d =4*‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇt | |