iron resistance 中文意思是什麼

A detailed introduction was made to the properties of the wet coated sand suitable for multi - station shell mould shooting machine ; the development of a sort of high strength coated sand with low resin content : the shaping index and wetness adjusting process : analysis and prevention of peel back defect of shells made with overturning hopper process ; test method of peel back resistance of coated sand : pinhole defect analysis of high ni ductile iron shell mould castings and application of anti - pinhole coated sand

詳細介紹適用於吹砂式多工位殼型機的濕態覆膜砂性能；高強度低樹脂量覆膜砂的研製；濕態殼型覆膜砂的成形性指數與調濕工藝；翻鬥法制殼時的脫殼問題分析和解決辦法；覆膜砂脫殼性檢測方法；高鎳球鐵件殼型鑄造表面針孔原因分析與抗針孔覆膜砂的應用。

The results show that adding certain quantity manganese to 28cr cast iron will maintain its better corrosion resistance and wear resistance, ever in the thick casing work piece

結果表明，在28cr鑄鐵中加入適量的錳，可以使其保持較好的耐蝕性能和抗磨損性能，即使是在厚大斷面鑄件中。

1. main products : high resistance forum chromium aluminum, nickel chromium, nickel chromium alloy with iron resistance electro thermal, high - temperature heat - resisting stainless steel series, precision alloy, cuprum nickel alloy and manufactured goods

1 .主要產品：高電阻鐵鉻鋁鎳鉻鎳鉻鐵電熱合金材料高溫耐熱不銹鋼系列合金材料精密合金銅鎳合金材料等。

Considering the electrovalence, the curve of water consumption and the reliability of water supply, this paper respectively sets up the model based on the maximal flux and the model based on the expectation flux. it takes yearly expenditure converting value and yearly cistern converting value as target function and takes continuity equation, velocity of flow and compression resistance of cast iron pipeline as restrictions and sets up the pga model on optimal design of water supply networks

考慮到峰谷電價、用水量變化曲線及用水可靠性因素的影響，分別建立了以最高時流量設計管網的模型和以期望時流量設計管網的模型，以年費用折算值加上清水池年造價折算值為目標函數，以連續性方程、管中流速和鑄鐵管耐壓值等為約束條件，進行并行遺傳演算法對給水管網優化設計的實現。

In the meantime, high disease resistance and high iron content of the transgenic plants are expected to be achieved due to the natural antibiotic activity and strong iron binding property of the transgenic product

乳鐵蛋白強的鐵螯合能力和廣譜抗菌、抗病功能，可提高轉基因胡蘿卜鐵的含量，增強胡蘿卜抗菌、抗病能力。

The cast iron horsing is of solid one - piece construction to provide maximum rigidity against deformation at mounting and wear resistance to any operating conditions

鑄鐵座為整體座結構，軸承座剛性極好，防止軸承在裝配時產生變形，在任何情況下軸承座均持久耐用。

This paper reviews the formation and feature of iron and manganese plaque, alleviation of metal ( loid ) toxicity via adsorption and accumulation, eutrophication purification, plant acid proof and barren resistance

文章綜述了植物根表鐵錳氧化物的形成與特徵，對有害金屬和類金屬污染物、有機污染物的吸附和富集作用，對富營養化水體的凈化作用，以及提高植物的耐酸和耐貧瘠能力。

It is this nodular microstructure of carbon in ductile iron which produces high ductility and shock resistance while the flake form of cast iron results in no malleability

正是這種碳的球狀微觀結構，使得球墨鑄鐵具有更加良好的展延性和抗沖擊性，而鑄鐵內部的薄片形式導致鑄鐵沒有展延性。

Method for chemical analysis of manganin and novokostant resistance alloy the sulphosalic acid photometric method for the determination of iron content

錳銅和新康銅電阻合金化學分析方法磺基水楊酸光度法測定鐵量

In recent years, the colossal magneto - resistance effect in rare - earth manganite perovskites of the type lni. xaxmno3 ( where ln is rear - earth irons la2 +, nd2 +, p2 + ; a is alkaline earth iron ca2 +, sr2 +, ba2 + ) has attract considerable attention in scientific studies due to its potential application. however, the poor temperature dependence of mr and the low - temperature mr effect and the ideal mr only in high field severely limit their practical utility. in this work, we prepared manganite perovskite lai - xsrxmno3 and soft - magnetic ferrite materials fe2o3 and ( ni, zn ) fe2o4 by using sol - gel method separately

近些年來，人們發現在鈣鈦礦錳氧化物ln _ （ 1 - x ） axmno _ 3 （ ln為la ， nd ， pr等稀土金屬元素； a為ca ， sr ， ba等堿土金屬元素）中具有磁電阻（ magnetoresistance ）效應，由於它在磁記錄，磁傳感器方面具有廣泛的應用前景，同時也向傳統的磁記錄材料提出了挑戰，因而引起了物理學界的廣泛關注。

Star maling epoxy micaceous iron oxide intermediate coating is an excellent general anticorrosion prime and intermediate coating with good resistance to salts, water and alkalis

本產品是性能優異的通用防銹底漆和中塗，具有非常好的耐鹽水、耐淡水和耐堿性能。

Determination of the resistance of welts to picking iron wire method

起口邊耐清理的測定鐵絲法

In regard to the low wear resistance of the white iron shot in the practical application, based on experimental research and trial production, by alloying and proper heat treatment, the shot can be made with higher hardness, better toughness and increased service life

摘要針對白口鐵丸在實際應用過程中不耐磨的現象，通過大量實驗研究和試生產，找到通過添加合金元素生產合金鐵丸，並通過適當熱處理等手段，使其既具有較高硬度，又有良好的韌性，使用壽命得到提高，滿足拋丸工作的需要，節約大量資金，提高了勞動生產率。

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 。

The results show that the composites were more wear resistant than the matrix, contributing to the " volume effect " and " size effect ", the wear resistance increases with the particle content and size. the composite shows better wear resistance than high chromium cast iron material especially in low load and fine abrasive test condition. the results also indicate that the composite strengthened by ageing treatment was more wear resistant than as - cast composite

磨損試驗結果表明，鑄造碳化鎢顆粒增強cu - ni - mn合金基復合材料具有比較高的抗磨料磨損能力，而且其耐磨性隨著鑄造碳化鎢顆粒體積分數及尺寸的增大而提高，表現出了強烈的「體積效應」及「尺寸效應」 ，尤其是在低載荷、細磨料磨損條件下，復合材料表現出更好的而寸磨性，即使與高鉻鑄鐵（ cr28 ）相比也有很大程度的提高。

High chromium cast iron has higher erosion resistance at lower impact angle, while the erosion resistance is worse for the lower toughness at normal impact

高鉻鑄鐵在低角沖蝕時有較高的耐沖蝕性，但高角沖蝕時由於脆性大，易崩裂。

28cr high chromium cast iron is one of primary wear resistance materials, which is in use at present. it shows superior performance in corrosion wear and abrasive wear

28cr高鉻鑄鐵是目前使用的主要的抗磨材料之一，在抵抗腐蝕磨損和磨料磨損中表現出優越的性能。

Verification regulation of the standard rhodium - iron resistance thermometers

標準銠鐵電阻溫度計檢定規程

Rhodium - iron resistance thermometer

銠鐵電阻

It is indicated that the dredge pump abrasion resistance parts produced by high - chromium cast iron can meet the demands of design, and its properties may reach the level of products abroad

試制結果證明，使用高鉻鑄鐵生產的泥泵過流耐磨部件符合設計要求，性能達到國外同類產品水平。