no problem 毫無(wú)問(wèn)題; 考試家族; 沒(méi)問(wèn)題; 無(wú)問(wèn)題
problem n. 1.問(wèn)題,課題;疑難問(wèn)題;令人困惑的情況。 2.【數(shù)、物】習(xí)題;作圖題。 3.(象棋的)布局問(wèn)題。 the problem of unemployment 失業(yè)問(wèn)題。 His whole conduct is a problem to me. 他的一切行為我都不理解。 adj. 1.成問(wèn)題的;難處理的。 2.關(guān)于社會(huì)問(wèn)題的。 a problem child 【心理學(xué)】問(wèn)題兒童;難管教的孩子。 a problem novel [play] (反映社會(huì)問(wèn)題等的)問(wèn)題小說(shuō)[戲劇]。 sleep on [upon, over] a problem 把問(wèn)題留到第二天解決。
vehicle n. 1.車(chē)輛;載運(yùn)工具;飛行器;運(yùn)行工具。 2.媒介物,媒質(zhì)。 3.【藥學(xué)】賦形劑。 4.【繪畫(huà)、化】展色料,載色劑。 a space vehicle太空船。 an escape vehicle太空飛行器。 a rocket vehicle火箭。 a staged vehicle多級(jí)火箭。 a seeking vehicle自動(dòng)尋找目標(biāo)的火箭。 an airborne vehicle飛機(jī)載運(yùn)導(dǎo)彈。 the greater [lesser] vehicle【佛教】大[小]乘。 Language is the vehicle of thought. 語(yǔ)言是表達(dá)思想的工具。
The vehicle routing problem (VRP) is a combinatorial optimization and integer programming problem seeking to service a number of customers with a fleet of vehicles. Proposed by Dantzig and Ramser in 1959, VRP is an important problem in the fields of transportation, distribution and logistics.