非極性 的英文怎麼說
中文拼音 [fēijíxìng]
非極性
英文
chemical polarity-
The alkanes are non-polar.
烷是非極性的。The nonpolar segments of surfactants include straight-chain and branched alkyl groups.
非極性表面活性劑鏈段包括直鏈和支鏈的烷基。The small packing adhesive, which is a modified product from ethylene - vinyl acetate copolymerized emulsion, has high solid content, low viscosity, and good adhesive strength. the product is up to the standard of foodstuff hygiene and suitable for the small package of the cigarette packing production line with stable adhesive application and the making speed up to 400 packs per minute. type i is for white card paper, while type ii is for golden card paper
小盒包裝膠系乙烯-醋酸乙烯共聚乳液改性產品,具有高固含低粘度粘接力強等特點,產品符合食品衛生標準,適用於卷煙卷包生產線的小盒包裝,施膠穩定,無開包等不良現象,車速可達400包分,型為白卡紙專用膠,型為金卡紙專用膠,具有極佳的初粘力和持粘力,對非極性材料的光滑表面有獨特的優良粘接性能,對各種難粘材料均可適用。Methane is apolar.
甲烷是非極性的。First of all, the theoretic basis for the stereoisomer rearrangement of biomarker compound is illustrated, and then the corresponding relations between the sterane / terpane stereoisomer rearrangement and maturity, as well as the polarity / non - polarity and petroleum migration are discussed, respectively
首先闡明生物標志化合物立體異構重排的理論依據:然後分別探討了萜、甾烷類立體異構重排和成熟度對應關系;極性、非極性生物標志化合物異構體重排和油氣運移對應關系。Standard test method for dimer trimer of chlorotrifluoroethylene recoverable oil and grease and nonpolar material by infrared determination
用紅外線測定法測定三氟氯乙烯可回收油和油脂和非極性材料的二聚物三聚物的標準試驗方法All five valences are the ordinary, nonpolar ones.
所有5個價鍵都是普通的非極性鍵。Intercalation and exfoliation behaviors of organo - mmts in low density polyethylene ( ldpe ) and copolyethylene / mmt systems have been investigated. it was found that ldpe has certain intercalation capability, while ethylene vinyl - acetate copolymer ( eva ) with polar groups exhibits some compatibilization and excellent intercalation capability
結果表明,非極性的ldpe插層能力極其有限,聚乙烯共聚物具有良好的插層能力; mmt分散效果以及復合材料的性能取決于高分子鏈的極性和有機蒙脫土的性質。The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material
本文的主要工作和結論如下:在人工氣候室內,根據不同覆冰絕緣子正、負極性下的閃絡試驗結果,得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓;正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應;覆冰較少時,合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法,對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明,直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低,且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。In order to compare the retention time ( rt ) and limits of detection of 20 organophosphorous insecticides in different conditions the experiments were carried out using a medium polar capillary column ( db - 1701 ) and a no polar capillary column ( db - 1 ) with two detectors ( gc - fpd and npd ). the rt of 20 organophosphorous insecticides in two different polar capillary columns was a retention qualitative method for 20 organophosphorous insecticides. db - 1701 capillary column coupled with gc - fpd detector was used in the following study, the limits of detection were in range of 5x10 - 11 ~ 2x 10 - 12 g, the linear range was 2x 10 - 9 ~ 1 x 10 - 11g
本研究用兩種檢測器(氮磷檢測器和火焰光度檢測器儀器)和兩種不同極性色譜梓(中極性毛細管色譜柱db - 1701 、非極性毛細管色譜柱db - 1 )作為研究手段,比較了20種有機磷殺蟲劑在兩種色譜柱( db - 1 、 db - 1701 ) 、兩種檢測器( fpd 、 npd )上的保留時間及最小檢測量,建立了用不同極性色譜柱上有機磷農藥的保留時間可作為有機磷農藥雙柱定性確證的的方法;建立了db - 1701 , gc - fpd測定蔬菜中20種有機磷殺蟲劑的氣相色譜法,該方法的最小檢測量為5 10 ~ ( - 11 ) 2 10 ~ ( - 12 ) g ,線性范圍在2 10 ~ ( - 9 ) 1 10 ~ ( - 11 ) g時,相關性良好。Nonpolar solvent with little dielectric constant has good effect to the rate of the reaction, while larger polar solvent without h ( superscript + ) also can increase the rate of the reaction
可以知道對甲醇羰基化這一反應,在極性溶劑中,極性較大且為非質子型的溶濟能顯著提高反應的速率;非極性溶劑中,介電常數較小的溶劑能增加反應速率。The eluent is changed in a regular manner starting with a nonpolar solvent and gradually replacing it by a more polar one
洗脫液以常規的順序更換,首先用非極性溶劑,然後逐步被極性較強的所替換。The mechanism of the surface change has beenstudied by the xps, sem, contract anglemeasurements. we discuss the roles of the tree main fators playing in the fiber - resin adhesion, and their relation to plasma parameters. the three main factors ars the key mechanical effects, the chemical bonding effcts and nonpolar dispersion force
表面粘接性能改善的原因是:由表面引入的多種含氧基團引起的化學鍵力和界面非極性分子色散力,由表面刻蝕坑引起的界面機械鉸鏈力。它們對界面的粘接強度的貢獻隨參數而改變。Methods : use head - space automatic injection method, isolating with the nonpolarity flexibility capillary column, calculating with external method
方法:採用外標法頂空自動進樣,在非極性彈性毛細管柱上進行分離,效果良好。Nonpolar filler are used in reversed phase chromatographic system, of which, octadecylsilane chemically bonded silica is most commonly used, sometimes, octyl chemically bonded silica and other types of chemically bonded silica ( such as cyano chemically bonded phase and amino chemically bonded phase, etc ) are also used as well
反相色譜系統使用非極性填充劑,以十八烷基硅烷鍵合硅膠最為常用,辛基硅烷鍵合硅膠和其他類型的硅烷鍵合硅膠(如氰基硅烷鍵合相和氨基硅烷鍵合相等)也有使用。With the concept of equivalent conductivity plate, we presented a calculating method for the interactions among particles in a single chain and among chains in anonpolar liquid. thus the interactions in a single chain and in different 2d structure is obtained. further, we get their stress - strain relationship. the results show the interactions among chains significantly enhanced the anti - shear capacities of er fluids
用等效電導平板建立了非極性液體中單鏈粒子之間以及鏈與鏈之間相互作用力的計算方法.分別計算了單鏈、平面密排結構、平面矩排結構的準靜態應力應變關系和屈服應力.通過和單鏈結構比較發現,平面密排結構中鏈鏈之間的相互作用力使結構的屈服應力(平均到每條鏈)增大,且隨著鏈數的增加,增強作用顯著In the packing of amphiphilic molecules, like units of the molecules interact with each other, i. e., the polar units associate with each other ; likewise, nonpolar unites associate to form hydrocarbon layers in the lamellar packing
在層狀相中雙親分子的堆積類似於分子單元間的相互作用,即極性基團與極性基團締合形成親水層,而非極性基團之間締合形成疏水層。Study on flotation reagent of multi - non - polar radical compound
含復式非極性基團浮選藥劑研究Influence of thickness on charge storage and dynamic properties of non - polar film electrets
厚度對非極性聚合物薄膜駐極體電荷儲存及電荷動態特性的影響During the accelerated thermal aging and ultraviolet radiation aging of pmma which is used as the core materials of fiber in pof, it was found that the relative permittivity of pmma decreased significantly to approximately equal to its square refractive index
摘要實驗中觀察到用作塑料光纖纖芯材料的純有機玻璃(聚甲基丙烯酸甲酯)在加速熱老化和紫外老化過程中其相對電容率急劇下降至大約等於其折射率的平方,即有機玻璃由極性聚合物變為非極性聚合物( 「全去偶極子極化」現象) 。分享友人