单词：radiosonde and radar wind sounding
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[00:00.00] Unit 4 [00:02.90]Lesson 13 [00:08.46]Emma [00:09.74]n.埃玛 [00:11.02]along/on the way [00:13.60]在途中；在路上不过 [00:16.17]though [00:17.49]adv. 虽然,可是 [00:18.81]hard [00:20.14]adv.硬的,坚固的 [00:21.47]storm [00:2
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The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for
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