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rectangular pipe中文是什么意思

  • 矩形管

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  • 例句與用法
  • Between july 19 and august 7, doc of the u . s . a . initiated antidumping duty investigations against light-walled rectangular pipe, laminated woven sacks, and tubenew pneumatic off-the-road-tires from china
    從7月19日到8月7日,美國商務(wù)部相繼對原產(chǎn)于中國的薄壁矩形鋼管、編織袋、非公路用輪胎發(fā)起反傾銷調(diào)查。
  • The piping workshop is equipped with three sets of pipe-welding machines and thereby may produce carbon steel and stainless steel round pipes in the sizes of 161140.84.5mm, and rectangular pipe in sizes of 15158080
    制管車間裝有4576及114三套焊管機(jī)組,可生產(chǎn)規(guī)格為161140.84.5mm的碳鋼和不銹鋼焊接圓管,以及規(guī)格為15158080的方矩形管。
  • 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。
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