英语词汇“mean speed”的翻译、意思、用法、释义-英汉汉英双解词典

单词	mean speed
释义	mean speed 基本例句平均速度 The average speed of the trains in China is increasing.中国火车的平均速度一直在提高。 Use a graphing program such as Excel to graph the second distance on the x-axis and average speed on the y-axis.计算气球上每个点相对银河系的平均速度。
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