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Kpler是一家總部位於巴黎的大宗商品分析機構，通過衛星圖像與船舶自動識別系統實時追蹤全球液貨運輸，是原油貿易領域最常被援引的獨立數據來源之一。其數據顯示，2025年中國日均進口伊朗原油約138萬桶，佔海運進口總量的13.4%。
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Some people avoid their headphones' equalizer because they feel intimidated by the numbers and symbols that represent frequency components. Many headphone apps include a five or six-band equalizer, and even if you don't understand what you're looking at, your ears will translate the different frequencies for you.
But what if we could have overlapping implementations? It would simplify the trait implementation for a lot of types. For example, we might want to automatically implement Serialize for any type that contains a byte slice, or for any type that implements IntoIterator, or even for any type that implements Display. The real challenge isn't in how we implement them, but rather in how we choose from these multiple, generic implementations.