題組內容
7. (Total:15 %) Two plants are prepared form the X alloy and Z ceramic, and their fracture toughness values are 60 and 5 
. The alloy and ceramic plates are exposed to the same tensile stress of 375MPa.
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7. (Total:15 %) Two plants are prepared form the X alloy and Z ceramic, and their fracture toughness values are 60 and 5 . The alloy and ceramic plates are exposed to the same tensile stress of 375MPa.