阐述了X列表的内涵,并结合网络化制造的特点,扩展了广义工作中心的概念。
Conclusion The effect of facility derating box was considered effective and should be generalized.结论简易投毒箱的防鼠灭鼠效果良好,值得推广。
Using the generalized coordinates method, fundamental equations for the restrained-torsion of thin-walled box girders of trapezoidal cross section are derived.本文介绍了用广义坐标法推导的梯形截面箱梁约束扭转计算的基本微分方程;