billets

基本解释

These parts have usually been machined from solid billets, which can result in 90% of the material being cut away.
這些外殼通常由金屬坯加工而成，其結果是90%的金屬材料被廢棄。
And once we lose the ability to use a pen and paper, it's only a matter of time until we can no longer decipher previous generations' billets-doux.
同時，一旦我們失去了使用紙和筆的能力，我們再也不能解讀前人的情書衹是一個時間問題。
The trick he learned there was to move into steelmaking using imported direct-reduced iron (DRI) pellets instead of more expensive scrap or imported steel billets.
在那裡，米塔爾學到的一個訣竅就是，採用進口的直接還原鉄丸（direct-reduced iron (DRI) pellets ），而不是採用更爲昂貴的進口或報廢鋼坯。

And, these are giant billets of solid titanium weighing tens of tons.
這些巨大的固躰鈦的鑄錠,有十幾噸。
麻省理工公開課 - 固態化學導論課程節選

Each day, he sent to her house, on Dupont Circle, a packet of billets-doux and state documents.
NEWYORKER: State of the Union
Young lovers in Victorian England, forbidden to express their affection in public and fearful that strict parents would intercept their billets-doux, sent coded messages through the personal columns in newspapers.
FORBES: I've got a secret

If members of the armed forces are billeted in a particular place, that place is provided for them to stay in for a period of time.
A billet is a house where a member of the armed forces has been billeted.
a chunk of wood, esp for fuel