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The characteristics of crab gantry crane are high load-and-unload efficiency, high frequency of start, brake and big intensity.
抓斗装卸桥的特点是装卸效率高，但起制动频繁且工作强度大。
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Safety life of crane was determined by its fatigue intensity of metal structure.
起重机的安全寿命取决于其金属结构的疲劳强度。
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模块下移
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