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| blowing sand (气象工作者认为，风大，将地面尘沙吹起，使空气浑浊，天色昏黄的现象。出现时，水平能见度在1000m〜 10km。风沙物理学工作者认为，从风沙移动规律考虑，在近地面4〜5m/s的风速下，裸露风成沙即行移动，沙丘顶或背风坡丘檐扬起一股一股的风沙流，但高空并无浮尘而仍然晴朗。即使大风，也不会把砂粒吹到空中。扬沙，实际上仅限于近地面的风沙流活动) | |||
| sand blasting | |||
| 吹 沙: 10 phrases in 7 subjects |
| Desert science | 2 |
| General | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 1 |
| Wind Energy | 3 |
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