基本解釋[經濟學]地面梯側板英漢例句雙語例句Failure analysis of side rail box imitating chief beam of metallurgy crane was studied. Cause of fatigue failure and improving method were given.介紹了冶金起重機金屬結構偏軌箱形模擬主梁的疲勞失效分析研究結果，提出疲勞失效的原因及改進措施。beam side rail更多例句專業(yè)釋義經濟學地面梯側板