shell core 中文意思是什麼

shell core 解釋
薄殼砂芯
  • shell : n （pl shells 2 義為 shell）1 殼；介殼；甲殼；貝。2 （昆蟲的）翅鞘；蛹的蛻皮。3 【解剖學】種子的...
  • core : CORE ＝Congress of Racial Equality 〈美國〉爭取種族平等大會。n 1 果心。2 （事物、問題等的）中心，...
  1. Arbors for shell reamers and shell core drills

    套式鉸刀和套式擴孔鉆用心軸
  2. In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased

    同時採用有機硅單體延遲滴加及添加水解抑制劑等技術，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應，提高了聚合物大分子鏈中有機硅鏈節的含量；利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵，並通過對共聚產物力學和吸水率的測試，證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能；從分子設計角度出發，利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷；利用核磁共振對新型硅烷單體結構進行了證實；研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液，且其聚合產物具有較高的力學及耐水性能。
  3. The results showed that the acr emulsoid particle size and its distribution can be adjusted by varying the amount of seed emulsion used in the pre - emulsionized seed - emulsion polymerization, and the acr emulsoid particles have core - shell structure obviously

    結果表明，採用預乳化種子乳液聚合法制備acr乳液，可以有效地控制乳膠粒徑及分佈；且所合成的acr乳膠粒子具有明顯的核殼結構。
  4. The emulsoid particle size and its distribution were determined by laser particle sizer. the composition changes of acr were inspected by ir, and the core - shell structure was observed by tem. the morphologyes of acr resin particles were inspected by polarization microscope at last

    通過激光粒度分析儀對所合成的乳膠粒徑及其分佈進行了分析測試，藉助于ir考察了所合成的acr的組成變化，並通過透射電鏡對所合成的acr的核殼結構進行了驗證，最後藉助于偏光顯微鏡觀察了破乳乾燥后得到的acr粒子。
  5. A dense core of incandescent helium is surrounded by a thin shell of hot, fusing hydrogen.

    一個由白熾的氦形成的稠密的核外麵包圍著一層熾熱熔化的氫薄殼。
  6. But in the capital market, lbo, mbo, and go public through buying a shell have already become the main method of china ' s corporation merger, property right reform, and strengthening corporation ' s core competitiveness strength

    而在國內資本市場上，杠桿收購（ lbo ） 、管理者收購（ mbo ）以及買殼上市等，已成為中國企業進行產權改革、增強核心競爭力的重要手段。
  7. The carbonate content varied from 0 to 34. 55 % in the column of drilling core ey02 - 2, the higher carbonate content related to materials of modern and old yellow river in postglacial period, while the peak carbonate content related to the shell fragment in the sediment, the dissolved cycle appeared to be the carbonate dissolved cycle of the atlantic mode

    Ey02 - 2孔柱樣碳酸鹽含量在0 - 34 . 55之間變化，呈現大西洋型caco _ 3溶解旋迴，冰後期以來碳酸鹽高含量與高碳酸鹽的現代黃河和廢黃河物質有關，而中晚更新世碳酸鹽極高含量與貝殼含量有關。
  8. The specifications of producible vertical parted core shooter, shell moulding machine and horizontal parted core shooter are complete. we can furnish all kinds of moulding lines which can be satisfied for consumers

    我廠生產的垂直分型的射芯機、殼型機以及水平分型的射芯機，規格齊全，可為各類造型線提供配套需要的機器。
  9. Semiconductor quantum dots ( qds ) are inorganic nanocrystals consisted of a cadmium selenide ( cdse ) core which was wrapped in an outer shell of zinc sulfide ( zns )

    摘要半導體量子點是無機納米結晶，構成於硒化鎘核心和硫化鋅外殼。
  10. Research progress in nanocomposites with core shell structures

    殼結構復合納米材料研究進展
  11. Development of styrene - acrylic anti - rust emulsion paint with core - shell structure

    殼苯丙防銹乳膠漆的研製
  12. Preparation and characterization of the polystyrene silver core - shell structure nanospheres

    核殼結構納米微粒的制備及表徵
  13. Using the semi - batch synthesis techniques, a grafting reaction mechanism is adopted to prepare a core - shell composite latex of siloxane / acrylate based copolymer

    利用接枝反應和種子溶脹半連續滴加技術合成了聚有機硅氧烷聚丙烯酸酯復合乳液。
  14. Since the hydrogen - burning shell and helium - burning core do not produce energy in a stable and steady manner, the star will pulsate and generate strong stellar wind

    由於這時燃燒氫和氦以產生能源的過程並不穩定，星體除了會不斷脈動外，更會產生強勁的恆星風把外殼吹掉。
  15. In order to producte qualified inlet manifold casting, top gating system with lip riser and shell core made of precoated sand is used

    為了獲得合格的進氣歧管鑄件，採用壓邊頂鑄澆注系統和覆膜砂殼芯製作工藝。
  16. Core drills ; technical specifications for shell core drills

    空心鉆.套式空心鉆的技術規范
  17. Shell core drills with hard metal tips

    鑲硬質合金刀片的筒形擴孔鉆
  18. Shell capacity of film laminating sand is one important index for tipper hopper type shelling, shell core and technology of blowing method

    覆膜砂的結殼性能不管對于採用翻鬥法製造殼型殼芯，還是採用吹射法製造殼芯的工藝都是一個重要的指標。
  19. Shell core machine. technical requirements

    殼芯機.技術條件
  20. Acrylic high performance self - crosslinking binder fl for pigment printing was prepd. by shell - core polymn, and with hcho - free crosslinking agent

    摘要採用無甲醛交聯劑經核殼聚合，制備了丙烯酸酯類高性能自交聯塗料印花粘合劑。
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