difference n. 1.差異,差別。 2.不和,爭論。 3.【數(shù)學(xué)】差,差額。 4.【邏輯學(xué)】特殊性。 There is no difference between them. 兩者毫無差別。 the difference of jetsam from flotsam 棄貨不同于浮貨。 What difference can it make 不是一樣嗎? He is an artist with a difference. 他是別具風(fēng)格的藝術(shù)家。 distinction without difference 無聊的區(qū)別。 make a difference 發(fā)生差別;使…有差別;(結(jié)果等)是重要的,有關(guān)系[影響] (One false step will make a great difference. 失之毫厘,謬以千里。 Don't let it make any difference. 沒關(guān)系。 make a difference between A and B 使甲乙有別,對甲乙不一樣)。 pay [meet] the difference 付差額金。 seek common ground while reserving differences 求同存異。 settle differences 調(diào)停。 split the difference 1. 折中,妥協(xié)。 2. 均分剩下的東西。 vt. 〔罕用語〕區(qū)別,使有差別。
Secondly , we present the principle of the algorithm , including its three key factors : the difference format , the stability condition and the absorbing boundary condition ( abc ) 第二章我們介紹了fdtd算法的基本原理以及算法的三大要素:差分格式、解的穩(wěn)定性條件、吸收邊界條件。
Based upon the forward simulation principle of ground penetrating radar , this article analyzes the realization method of the half grid spacing and the half time increment in difference format , at the same time analyzed the produce of the numerical frequency dispersion , then deduced the ideal frequency dispersion relationship and the super absorbing boundary condition 摘要本文從地質(zhì)雷達正演原理著手,分析了差分格式中半空間步長與半時間步長的實現(xiàn)方法,同時通過分析數(shù)值頻散的產(chǎn)生,進而推導(dǎo)出了理想頻散關(guān)系和超吸收邊界條件。
With this method , the feasibility of project can be decided preliminarily . 3 . one - dimensional hydrodynamic model is built , in which implicit difference format ( preismann discretization scheme ) and " three steps method " of one - dimensional unsteady flow model is used , hydraulic calculation is done for water diversion and flow strengthen in tidal networks and the method is enhanced in which the precision is improved greatly 建立一維水動力學(xué)模型,利用四點隱式差分格式( preismann格式)和一維河網(wǎng)非恒定流模型的三級解法,對感潮河網(wǎng)的引水增流工程進行了水力計算并對計算方法進行了改進,大大地提高了計算的精度。