cross per parent 中文意思是什麼
cross per parent
解釋
母親本雜交數-
As the performance of weld material or parent material per se could hardly reflect the integral strength of a weldment, the uniaxial cross - weld specimen provides an alternate to qualify the welding procedures
由於焊材或母材的性質均很難反映焊接接頭的整體強度,用焊縫試樣進行試驗提供了合理評價焊接接頭工藝性能的可能。
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