Following delivery to site, columns will be re-assembled and fully welded. Ideally this final assembly should occur within, or close to, pick-up radius of the erection crane.
随着支柱被交付到施工场地内，它要被重新装配和完全焊接。理想地说，支柱的最后装配应该发生在室内，或者是停止装配，安装用起重机的半径。
Based on result of calculation, proposal is made to limit the maximum travelling speed of the crane and the speed with which the crane can run on a curve with small radius.
根据计算结果对该起重机最高行驶速度和通过小半径曲线的速度限制提出了建议。
Imitating the project of electrical and hydraulic proportional valve, a CAM mechanism is adopted to input and convert the signal of crane arm's radius changing.
系统的控制信号输入方式借鉴电液比例阀方案，采用凸轮杠杆机构，从而利用了凸轮容易实现任意函数关系转换的优点。
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