例句與造句

1. Based on the review , the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters . we firstly analyzed the fully developed fluid flow and heat transfer , mixed convection heat transfer , the development of flow and heat transfer in the inlet in different cross section ( circular , elliptical , annular and rectangular crossection ) . the variations of the secondary flow , axial velocity , distribution of temperature , the friction force on the wall , the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
   本文在總結(jié)和分析了一個世紀(jì)以來有關(guān)曲線管道流動和換熱特性的研究成果的基礎(chǔ)上，以旋轉(zhuǎn)正交曲線坐標(biāo)系統(tǒng)下的多參數(shù)旋轉(zhuǎn)螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面(圓截面、橢圓截面、環(huán)形截面、矩形截面)旋轉(zhuǎn)曲線管道內(nèi)充分發(fā)展流動的流動結(jié)構(gòu)和傳熱特性(包括耦合對流傳熱特性)以及旋轉(zhuǎn)曲線管道開口段發(fā)展流動的流動結(jié)構(gòu)和換熱特性進(jìn)行了系統(tǒng)的數(shù)值模擬和理論分析，詳細(xì)討論了各種無量綱參數(shù)對管道內(nèi)軸向速度分布、二次流結(jié)構(gòu)、溫度分布、壁面摩擦力、摩擦系數(shù)比以及管道nusselt數(shù)的影響，獲得了若干創(chuàng)新性成果。
2. It's difficult to find developing fluid in a sentence. 用developing fluid造句挺難的