你见过风向袋在风中飘扬吗？
它们就像飞机场的风向袋，能在水流中保持方向，这样可以找到最好的发电位置。
They are able to align themselves in the current like windsocks at an aerodrome, so that they find the best position for power generation.
它们就像飞机场的风向袋，能在水流中保持方向，这样可以找到最好的发电位置。
They are able to align themselves in the current like windsocks at an aerodrome so that they find the best position for power generation.
孩子们玩的非常开心！ 非常放松！风向袋是做什么的，有其它的用途吗？谁在乎呢？
They all had such great fun and it was a great wind-down for their first week back- the wind socks were used for anything but their true purpose but who cares?
伟大的天文学家约翰尼斯·开普勒注意到所有彗星的尾巴都背离太阳，这说明太阳光会将它们推向后方，在彗星周围形成一个类似风向袋的形状。
Famed astronomer Johannes Kepler noticed that comet tails always point away from the sun, implying that sunlight itself was pushing them around like cosmic windsocks.
伟大的天文学家约翰尼斯·开普勒注意到所有彗星的尾巴都背离太阳，这说明太阳光会将它们推向后方，在彗星周围形成一个类似风向袋的形状。
Famed astronomer Johannes Kepler noticed that comet tails always point away from the sun, implying that sunlight itself was pushing them around like cosmic windsocks.
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