joist

英 [d???st] 美[d???st]

擴(kuò)展詞匯

復(fù)數(shù):?joists;

joist 托梁

來(lái)自古法語(yǔ)giste,橋梁支撐梁，托梁，來(lái)自拉丁語(yǔ)iacere,扔，投擲，引申詞義躺，擱，詞源同gist,jet,gist.

joist: joist: [14] Etymologically, a joist is a wooden beam on which boards ‘lie’ down. The word’s ultimate ancestor is the Latin verb jacēre ‘lie down’ (from which English also gets adjacent). Its neuter past participle jacitum was taken into Old French as a noun, giste, which denoted a ‘beam supporting a bridge’ (its modern French descendant, g?te ‘home’ – that is, ‘place where one lies down’ – is currently infiltrating English). Middle English took over the Old French word, which from the 15th century gradually began to change to joist.
=> adjacent
joist (n.): early 14c. (late 13c. in Anglo-Latin), from Old French giste "beam supporting a bridge" (Modern French g?te), noun use of fem. past participle of gesir "to lie," from Latin iacere "to lie, rest," related to iacere "to throw" (see jet (v.)). Notion is of wooden beam on which boards "lie down."

1. The transverse diaphragm is very similar in appearance to the conventional bar joist.: 橫梁很相似于通常的鋼筋擱柵.