以下为句子列表：
英文: Efficiency (EFF) Efficiency is the ratio of energy output to energy input, such as the ratio between the electrical energy input to a motor and the mechanical energy output at the shaft of the motor.
中文: 效率效率是输出能量与输入能量的比率，例如输入到电动机的电能与电机轴承输出的机械能的之间的比率。
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英文: One thing is certain: a substantial reduction in Iran's energy output would have a significant impact on global oil prices.
中文: 有一件事是确定无疑的：伊朗能源输出大量减少将对全球油价产：生重大的影响。
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英文: Walking like swimming, bicycling and running, is an aerobic exercise, which builds the capacity for energy output and physical endurance by increasing the supply of oxygen to skin and muscles.
中文: 和游泳、骑自行车、跑步一样，散步是一种有氧运动，通过增加向皮肤和肌肉输氧来增强能量输出和身体耐久能力。
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