以下为句子列表：
英文: In crane choosing, three parameters should be taken into consideration: payload capacity (Q), lifting height (H) and Working radius (R). and three parameters should meet design requirements at the same time.
中文: 选择起重机的型号原则是所选起重机的三个工作参数，即起重量Q，起重高度H和工作幅度（回转半径）R均需要满足班组结构吊装要求。
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