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Tracking whales is but one example of an exciting new wold just
- 2024-11-06 14:20:25
- 英汉互译(13129)
Earth scientists announced at a news conference recently that th
- 2024-11-06 14:20:24
- 英汉互译(13129)
Other scientists have proposed to use the network for tracking o
- 2024-11-06 14:20:23
- 英汉互译(13129)
The speed of sound in water is roughly one mile a second----slow
- 2024-11-06 14:20:22
- 英汉互译(13129)
Usually a rectangular plate of material, capacitors are essentia
- 2024-11-06 14:20:21
- 英汉互译(13129)
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To meet the power demands of modern devices, researchers have be
- 2024-11-06 14:20:19
- 英汉互译(13129)
Reporting online this week in Materials Letters the researchers
- 2024-11-06 14:20:18
- 英汉互译(13129)
塑料瓶的主要材料一般是PP(聚丙烯)及少量的PET(聚对苯二甲酸乙二醇酯)。利用废旧塑料瓶为原料制作衣服需要经历一个复杂的物理化
- 2024-11-06 14:20:17
- 英汉互译(13129)
将不同颜色的废旧塑料瓶分门别类地整理好,仔细去掉商标和污渍,经过碾压成颗粒和分解之后,在化纤车间经过高温挤压喷丝就变成了涤纶短纤
- 2024-11-06 14:20:16
- 英汉互译(13129)
PP(聚丙烯)原本是一种及其顽固的原料,要将它变成纤维本是一件不大可能的事情。指到1993年,诺贝尔化学奖得主,意大利著名化学家
- 2024-11-06 14:20:14
- 英汉互译(13129)