1650s, "three successive lines of poetry," from triple; perhaps patterned on doublet. Extended to a set of three of anything by 1733, and to three children at the same birth by 1787 (another word for this was trin, 1831, on the model of twin). Musical meaning "three notes played in the time of two" is from 1801.
雙語例句
1. A triplet sleeps amongst its two siblings.
一個三胞胎睡在其兩個同胞之間.
來自《簡明英漢詞典》
2. Because of this coding relationship, triplet of bases is called a codon.
由于這種編碼關系, 堿基的三聯(lián)體被稱為密碼子.
來自辭典例句
3. The pions form another triplet, electrically different but otherwise alike.
π介子構成另一種三重態(tài), 只是電荷不同,其它方面均相同.
來自辭典例句
4. One highly successful approach utilizes a triplet aspheric lens array.
一種很成功的方法是利用一個三合非球面透鏡陣列.
來自辭典例句
5. There are a number of ways in which one can construct a triplet code.