基本解释[经济学]地面梯侧板英汉例句双语例句Failure analysis of side rail box imitating chief beam of metallurgy crane was studied. Cause of fatigue failure and improving method were given.介绍了冶金起重机金属结构偏轨箱形模拟主梁的疲劳失效分析研究结果，提出疲劳失效的原因及改进措施。beam side rail更多例句专业释义经济学地面梯侧板