難沉顆粒 的英文怎麼說

中文拼音 [nánchénkēlì]
難沉顆粒 英文
difficulttosettle particlae
  • 難 : 難Ⅰ形容詞1 （做起來費事的） difficult; hard; troublesome 2 （不容易; 不大可能） hardly possible 3...
  • 沉 : Ⅰ動詞1 （沉沒; 墜落） sink 2 （沉下 多指抽象事物） keep down; lower 3 [方言] （停止） rest Ⅱ形容...
  • 粒 : Ⅰ名 （小圓珠形或小碎塊形物） small particles; grain; granule; pellet Ⅱ量詞（用於粒狀物）
  • 顆粒 : 1 （小而圓的東西） pellet; bead; dust; anything small and roundish （as a bean pearl etc ）2 （一...
  1. As an advanced materials preparation technology, spray - deposition has shown remarkable superiority in producing large - sized alloys and metal matrix composites. however, the spray deposeted preforms usually contain a certain quantity of porosity. besides, the oxide films on the surface of the particles lead to week metallurgic conjunction between the particles. in order to obtain an ideal structure and performance, the porous preforms need further densifying and plastical forming. in this paper, a new technology named wedge pressing was used to densify spray - deposeted 5a06 aluminium alloy, in which the large deformation can be obtained through the sum - up of local deformation and multi - step small deformation. this method can also solved the problems in traditional processing and greatly decreased the producing cost. what ’ s more, the reserch on the wedge pressing desification rules about the large - sized spray deposeted preforms was significant it was vital not only to the further densification of the prefoums but also to the further research on plastical deforming the research was also benefit to the industrialization an the application of the spray deposeted porous materials

    坩堝移動式噴射沉積技術作為一種先進的材料制備新技術，在制備大尺寸合金及金屬基復合材料方面具有顯著的優越性。然而噴射沉積坯件特別是大型坯件通常存在一定量的孔隙，顆粒表面存在一定量的氧化膜，顆粒之間未能完全達到良好的冶金結合狀態，因此需要進行后續緻密化和塑性變形才能獲得理想的組織和性能。本文採用一種新型的楔形壓制工藝，即通過局部變形、多道次小變形累積實現大變形的緻密化加工方法，對噴射沉積多孔坯料進行后續緻密化和塑性變形，很好地解決了傳統加工工藝的難題，大大降低了生產成本。
  2. Although the patterns of residual currents are likely to reflect the patterns of fine - grained sediment transport, it is difficult to relate such patterns to the transport of coarse - grained sediment

    然而余流的趨勢雖有可能反映細顆粒沉積物輸運的最大概率方向，卻難以與粗顆粒沉積物的輸運對應起來。
  3. Abstract : concentration polarization and fouling of membrane are the key problen which has effected in widening use of microfiltration. based on understanding on the flux decline and lateral migration deposition of porticles in tubular membrane, some analysis on effect factors of enhancement of microfiltration within tubular membrane with rotation flow is introduced, in this paper

    文摘:濃差極化和膜污染是阻礙微濾廣泛應用的關鍵難題，在認識理解顆粒遷移沉積和過濾速率下降的基礎上，本文對旋轉流管式膜微濾進行了一定的探討分析。
  4. Excellent correlation exists between the distribution of bottom shear stress and that of sediment types. low shear stress occurs in the central mud area ; where only fine - grained sediment can be imported by weak tidal currents. once settled into the bed, it is difficult for set the sediment into motion

    中部泥區為應力低值區所在，水動力弱的中部泥區只能接受弱水動力帶來的細顆粒物質，而且這些細顆粒物質一旦沉積下來，便難以再懸浮搬運走，說明中部泥區是連續沉積細顆粒物質沉積區。
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