這個拼法底下其實是2個不同的字，意思沒有關係， 只是長得一樣。下面分開列出來。跳到 冶煉；熔煉（礦石取金屬） · smell 的過去式／過去分詞
smelt
v, n核心畫面
Picture a furnace burning so hot that the rock itself gives up. Ore is stone with metal locked inside it. Heat the stone far enough and the metal runs out as a bright liquid that can be poured off and kept. That freeing of metal from the stone around it is the whole picture, and the noun is simply the same event given a name.
可以想成一座燒得極熱的爐子。礦石其實是石頭，金屬被鎖在裡面。把石頭燒到夠熱，金屬就會流出來，變成一道明亮的液體，可以…更多收起
可以想成一座燒得極熱的爐子。礦石其實是石頭，金屬被鎖在裡面。把石頭燒到夠熱，金屬就會流出來，變成一道明亮的液體，可以倒出來收起來。整個字就是這一件事：把金屬從包著它的石頭裡放出來。名詞的用法，只是把同一件事包成一個名字而已。From the word’s history
From Middle Dutch or Middle Low German smelten, 'to melt', from Proto-Germanic *smeltaną. It is related to English melt and cognate with German schmelzen, so the melting picture is in the word from the start.
這個字來自中古荷蘭文或中古低地德文的 smelten，意思是「熔化」。它跟英文的 melt 是親戚，德文 schmelzen 也同源。所以「熔」這個畫面，從一開始就在字裡面。
Wiktionary entry for smelt, etymology 3 (packet source_ref kaikki:3f6f69a190036ae4:211736070:7675)
A second word, same spelling
smelt
v核心畫面
This one is not a meaning at all, it is a shape. Think of smell walking in wearing past-tense clothes. Nothing new has been added: the nose, the kitchen, the flower are all still there, and only the time has moved. Its twin, smelled, is the same word in a different coat.
這一個其實不是意思，是形狀。可以想成 smell 換上了一身過去式的衣服走進來。內容一點也沒有變：鼻子、廚房、花的味…更多收起
這一個其實不是意思，是形狀。可以想成 smell 換上了一身過去式的衣服走進來。內容一點也沒有變：鼻子、廚房、花的味道全都還在，動的只有時間。它的雙胞胎 smelled 是同一個字穿了另一件外套。兩個都對，只是英式的書裡比較常看到 smelt。From the word’s history
Attested from very early Middle English smelte; the source notes it is likely to go back to Old English but is not recorded there.
這個形式在很早期的中古英文就寫作 smelte。資料上說它可能可以追到古英文，只是沒有留下紀錄。所以它不是後來造出來的變體。
Wiktionary entry for smelt, etymology 2 (packet source_ref kaikki:3f6f69a190036ae4:211728656:1558)
原始詞典資料6 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
smeltnoun詞源 1/smɛlt/
- 1
Any small anadromous fish of the family Osmeridae, found in the Atlantic and Pacific Oceans and in lakes in North America and northern part of Europe.
- 2
obsoleteA fool; a simpleton.
- These direct Men, they are no Men of fashion, Talk what you will, this is a very Smelt
smeltnoun詞源 3/smɛlt/
- 1
Production of metal, especially iron, from ore in a process that involves heating and chemical reduction of metal compounds into purified metal.
- 2
Any of the various liquids or semi-molten solids produced and used during the course of such production.
- 1982, Raymond E. Kirk and Donald F. Othmer, Encyclopedia of Chemical Technology, Wiley, →ISBN, page 405, The green liquor, ie, [sic] the solution obtained on dissolving the smelt, contains an insoluble residue called dregs, which gives it a dark green appearance.
- 1996, Arthur J. Wilson, The Living Rock: The Story of Metals Since Earliest Time and Their Impact on Civilization, When the smelt was complete the crucible could be lifted out and the metal poured directly into the moulds, thus avoiding the need to break it up and remelt […]
smeltverb詞源 3/smɛlt/
- 1
To produce metal, especially iron, from ore in a process that involves heating and chemical reduction of metal compounds into purified metal.
這個拼法也被記錄為下列字的變化形：
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。