常見(jiàn)例句雙語(yǔ)例句Much of the book is about their practical problems—thrust lines, the catenary curve and groin vaulting.該書(shū)大部分都是關(guān)于他們實(shí)際存在一些的問(wèn)題—外擴(kuò)的線(xiàn)條,垂曲弧,穹型拱頂。In nature, cosh(z) is the equation for the shape of a hanging rope connected at two ends, known as a catenary.實(shí)際上,cosh(z) 的結(jié)果相當(dāng)于一根吊繩兩端相連后得到的形狀,即懸鏈線(xiàn)。To determine the catenary curves of arches, he would tack a sketch of a foundation plan on the ceiling, hang loops of string, and attach weights along the loops in proportion to down forces.為了確定拱頂?shù)逆湢钋€(xiàn),他會(huì)用大頭針將基座草稿釘?shù)教旎ò迳希跎蠋兹K子,在繩子上加重,與向下的力相符。 返回 catenary