耐熱芯 的英文怎麼說
中文拼音 [nàirèxīn]
耐熱芯
英文
heat-resistant core-
Thermal resistant aluminium alloy steel - reinforced conductor
耐熱鋼芯鋁金絞線Electric cables - single core unsheathed heat resisting cables forvoltages up to and including 450 750 v, for internal wiring
電纜.內部布線用電壓不超過450 750v含450 750v的單芯非鎧裝耐熱電纜The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides
進一步對xynba進行了脫糖基化處理得到xynbb ，其分子量恢復到23kd ，證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現：三種酶的最適ph差異不大， xynb和xynba均為5 . 2 ， xynbb為5 . 0 ； xynb和xynba的最適溫度均為60 ， xynbb降為50 ：在耐熱性上， xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ； xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ，明顯低於原酶的比活2814 . 45iu mg ； xynb和xynba的km值相當，分別為21 . 56 （ g kg ）和20 . 87 （ g kg ） ，而xynbb的km值較大為27 . 10 （ g kg ） ； xynba和xynbb的vmax相差不大，分別為4568 mol mg ? min和5329 mol mg ? min ，明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性，對胃蛋白酶和胰蛋白酶有很好的抗性，且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現：以樺木木聚糖為底物時，酶解產物主要為木三糖和木四糖，含量分別為68 . 43和16 . 50 ，另外還含有11 . 79的木二糖；以玉米芯木聚糖為底物時，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。Super catheter - heat pipe vacuum tube is metallic glass vacuum tube - a form, it is a highly efficient solar collectors components, it has a high operating temperature, pressure can be great, cold and heat shock - resistant, anti - hail, all - weather work, and other unique advantages, is the nausea drying type, plate - type, after all - glass vacuum tube solar collector ' s fourth - generation products
超導管? ?熱管真空管是金屬芯玻璃真空集熱管的一種形式，它是一種高效的太陽能集熱元件，它具有工作溫度高、承壓能力大、耐冷熱沖擊、抗冰雹、全天候工作等獨特的優點，是繼悶曬型、平板型、全玻璃真空管之後的第四代太陽能集熱產品。Temperature field of hollow ingot solidification is simulated by fem. to different mould, effect of heat transfer coefficient between inner sleeve and cooling medium and thickness of core refractory on final position of solidification, the highest temperature of inner sleeve against cooling medium, and shrinkage cavity and porosity are compared. in addition, change of temperature in typical position of core refractory is also compared
對空心鋼錠凝固過程的溫度場進行了有限元分析，對不同錠型結構的芯部換熱系數、耐火材料厚度對最終凝固位置、內筒壁最高溫度及縮孔疏鬆的影響進行了對比，並討論了耐火材料典型部位的溫度隨凝固時間的變化。Abstract : temperature field of hollow ingot solidification is simulated by fem. to different mould, effect of heat transfer coefficient between inner sleeve and cooling medium and thickness of core refractory on final position of solidification, the highest temperature of inner sleeve against cooling medium, and shrinkage cavity and porosity are compared. in addition, change of temperature in typical position of core refractory is also compared
文摘:對空心鋼錠凝固過程的溫度場進行了有限元分析，對不同錠型結構的芯部換熱系數、耐火材料厚度對最終凝固位置、內筒壁最高溫度及縮孔疏鬆的影響進行了對比，並討論了耐火材料典型部位的溫度隨凝固時間的變化。Zirconium alloys are employed extensively in light water cooled reactors ( lwr ) as the cladding materials of fuel elements and other structural materials because of the low capture cross - section for thermal neutrons, good resistance to water - side corrosion at elevated temperature, adequate mechanical properties and high thermal conductivity
由於鋯的熱中子吸收截面小，並具有優異的耐高溫水腐蝕性能、良好的綜合力學性能和理想的熱導率，因此，鋯合金被用作核電站水冷動力堆核燃料元件的包殼材料和堆芯的其它結構材料。The voltage transformer is fully enclosed type the iron core is piled up of the cold roll silicon steel sheet. the iron core, primary and secondary windings are casting resin by advanced vacuum carting equipment. it has a good ability of antipollution and moisture proof. the secondary outlet is wrapped by outlet box with three exits with different directions. it, s convenient. it can prevent from stealing electricity
本系列電壓互感器為全封閉式結構，鐵芯採用優質冷軋硅鋼片繞制，並經嚴格的熱處理，鐵芯與一次繞組和二次繞組一起以先進的真空澆注工藝用環氧樹脂澆注成型，互感器耐污穢，耐潮濕性能好二次出線端子有出線端子盒，端子盒有三個不同出線方向接線方便，並可實現防竊電措施。These cut - outs can be made in either of the two blade profiles we manufacture, medium or short barb. in addition to the standard galvanized product, we are also able to manufacture both blade profiles in stainless steel or various other material on special request
刀片用及耐腐蝕性的熱鍍鋅鋼板或不銹鋼板做材料，由專用機械強力包附在熱鍍鋅高碳鋼絲或不銹鋼絲做的芯線上。Wedlding consumables - tubular cored electrodes for metal arc welding with or without a gas shield of stainless and heat - resisting steels - classification
焊料.不銹鋼和耐熱鋼的有或無氣體保護金屬極電弧焊接用藥芯焊條.分類Located in town of water heating equipment of china, jinye water heating plant is one the enterprises of water heating equipment engaged in science, industry and trade. we own strong technical strength, precision processing equipment and accurate testing measures to produce and sell water heating equipments such as water faucets with high - grade ceramics abrasionproof valve core, pipes, valves, elevating flower shower, hardware wall decoration etc. our plant processes assembly for several domestic manufacturers of water heaters
位於中國水暖之鄉的金葉水暖廠是一家科、工、貿結合的水暖器材企業之一，擁有雄厚的技術力量，精良的加工設備與高精度的測試手段，生產銷售各種高檔陶瓷耐磨閥芯水龍頭、管、閥、升降花灑、五金掛件等水暖器材，與數家國內知名熱水器廠加工配套。Study on the wear - resistant and anti - skid thermal spraying cored wires
耐磨防滑熱噴塗粉芯線材的研究分享友人