The AP estimated distances between pylons, counted railway ties and used a time stamp on the video to calculate the train's speed.
美联社通过视频中电缆铁塔之间的距离, 测量铁路枕木及使用过的印时戳来计算该列车的速度。
单词 | railway tie |
例句 |
原声例句
CNN 听力 2013年8月合集 The AP estimated distances between pylons, counted railway ties and used a time stamp on the video to calculate the train's speed. 美联社通过视频中电缆铁塔之间的距离, 测量铁路枕木及使用过的印时戳来计算该列车的速度。 |
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