notch-bar impact test 中文意思是什麼
notch-bar impact test
解釋
凹口試桿沖擊試驗-
Notched bar tests - specification for verification of the test machine used for precision determination of charpy v - notch impact energies for metals
劃痕棒材試驗.第7部分:金屬擺式v劃痕沖擊能量精密測定試驗機檢驗規范
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