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在论述测量不确定度分析原理基础上，根据电动葫芦能效测试方法建立其不确定度评价模型。通过对电动葫芦能效测试所使用的仪器精度评估，以CD110-9型电动葫芦为例进行了电动葫芦能效测试，并对测试结果的不确定度进行了评价。“,”This paper discusses the principle of uncertainty of measurement analysis, and establishes the uncertainty evaluation model according to electric hoist efifciency test method. Through to making an assessment of accuracy of instrument for electric hoist test of energy efifciency, we evaluate the uncertainty of the test result of CD1 10-9 type electric hoist for efifciency test.