等化學的 的英文怎麼說
中文拼音 [děnghuàxuéde]
等化學的
英文
isochemical-
They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。In addition, police also discovered various quantities of other chemicals, mainly hydrochloric acid, ammonic and acetone, which are suspected to have been used for the conversion of the solution containing cocaine into powder - form cocaine
此外,警方亦檢獲多種化學物品,包括鹽酸、氨水及丙酮。警方懷疑該等化學物品是用以將混有可卡因的液體提?成粉狀可卡因。Asymmetric autocatalysis intrinsically has the following advantages : chiral amplification of production, high reaction efficiency, easy purification of the products, consecutive reaction, which is a new aspect of chiral synthesis
不對稱自催化具有手性自動放大、反應活性較高、產物處理較易、反應體系連續等特點,是不對稱化學的一個新的領域。One of these pr genes, pr - la, responds not only to avirulent pathogen, but also to some chemicals, such as sa ( salicylic acid ) and bth ( benzothiadiazole ) etc., and the responding ability to the inducers is controlled by its promoter
其中一個pr基因pr - 1a ,不僅受病原菌誘導,而且受一些化學劑如sa 、 bth等化學劑的誘導,其誘導應答由其啟動子控制,因此pr - 1a啟動子可以應用於植物化學誘導系統中。The save energy mould pump of the corrosiveness of the ministry of industry such as chemical industry and chlorine alkali, chemical fertilizer, dyestuff, reagent, pesticide, pharmacy, electroplating and environmental protection etc door transport that pf ( fs ) mould chemical industry pump can satisfy to carry many kinds of consistency sulphuric acid, hydrochloric acid, nitric acid, acetic acid, phosphoric acid, chromium acid, oxalic acid, hydrofluoric acid and the lye, organic solvent and oxidizer geometric ratio medium under - 50 s - 80 s temperature conditions and is not han s anything small and roundish medium
型化工泵能滿足輸送- 50 80溫度條件下的多種濃度硫酸、鹽酸、硝酸、醋酸、磷酸、鉻酸、草酸、氫氟酸和堿液、有機溶劑、氧化劑等化學介質、是化工、氯堿、化肥、染料、試劑、農藥、制藥、電鍍、環保等工業部門輸送不含顆粒的腐蝕性介質的節能型泵。Multi - laboratory center of pangang is worked for production of steel - making factory. many producing processes, such as desulfurize 、 extracting - vanadium 、 steel - marking 、 refine out ladle ( lf 、 rh ) 、 caster etc, need directing and controlling by sampling and analysis, in order to get chemical composition information of molten iron 、 semisteel 、 molten steel 、 vanadium slag and slag and develop producing
攀鋼煉鋼綜合化驗中心是為煉鋼廠生產服務的,煉鋼廠各生產工序如脫硫、提釩、煉鋼、爐外精煉( lf 、 rh ) 、連鑄等,都必須通過取樣、化驗分析來實時獲得鐵水、半鋼、鋼水以及提釩釩渣、爐渣等化學成分來指導、優化生產。Through the approach of investigative questionnaire and ability examination, considering both teachers " teaching practice in senior high school and students " need in analyzing and resolving problem, taking the method of fixing the quality and quantity, we make a demonstration research. at last, we draw a conclusion that the 19 manifestations of chemistry ability can be reduced to three levels : the basal level, called repeating thinking, includes distinguishing and judging the chemical fact and relations of quantity in chemical reaction, comparing and summarizing the chemistry fundamental knowledge ; innovative thinking level includes illogical thinking and logical thinking. illogical thinking mainly contains intuition, association and space imagination of micro - particle
通過調查問卷、能力測試等途徑,結合教師在中學化學的教學實踐和學生在分析、解決問題的實際需要,採用定性與定量結合的方法,進行實證研究,得出結論:化學學科能力的19種表現形式歸納為3個層次:最基礎的再造性思維能力層次包括對化學事實和化學反應中量的關系的識別和判斷、對化學基礎知識的比較概括;以培養創新能力為核心的創造性思維層次包括化學直覺思維、聯想、對微觀粒子的空間想象為主的非邏輯思維和靈活運用已學的化學知識通過分析、綜合地解決問題為主的邏輯思維;化學實驗能力層次是化學學科能力的最高層次,它以思維能力為基礎,集中體現了化學教學的基本特徵,實驗能力層次包括:選用實驗方法和設計實驗方案,對實驗的評價,研究和處理實驗事實、資料、數據,發現規律,表達實驗及其結果,最終解決問題的能力和發散思維。But in contrast of the research of chemical weathering of other rocks, such as granites and basalts, the research of chemical weathering of black shales both in width and depth still remains much to advance. after reading and investigating widely, we selected lower - cambrian black shales and their weathering profiles in hunan province as research objects of our work at first. then, based on field investigation of weathering status of lower - cambrian black shales and it ' s relationship with soil composition and human activities in hunan, we studied changes of chemical composition such as major and trace elements before and after weathering of black shales by comparison
根據文獻閱讀和野外調查,本文選擇了湖南安化、桃江、望城等地下寒武統黑色頁巖及有關風化剖面作為研究對象,並在查明湖南下寒武統黑色頁巖的風化現狀及其與土壤組成、人類活動的關系的基礎上,對比研究了黑色頁巖風化前後主量和微量元素等化學組成的變化,探討了元素的富集和遷移轉化機制以及黑色頁巖風化與區域環境質量的關系,得出了如下幾點主要成果和認識: ( 1 ) ti是黑色頁巖風化過程中的「不活動」元素,可作為參照元素,對其它元素的活動性進行質量平衡計算。Abstract : the applications of chemometric approaches, such as opt imization, multivariate calibration, artificial neural network, signal processin g, resolution, parameter estimation etc., in capillary electrophoresis have bee n reviewed
摘要:綜述了最優化方法、多元校正方法、人工神經網路、曲線分辨、信號處理等化學計量學方法在毛細管電泳分離分析中的應用,展望了化學計量學在毛細管電泳中的應用前景。The a - transglucosidase was selectively modified by pcmb, me, edc, clac, acetyl acetone and nbs, and changes in the activities of the enzyme have been detected. the reaction of a - transglucosidase with pcmb, me, edc and clac resulted in a strong inhibition of the enzyme activities which decreased with the increase of modifier concentration. the acetyl acetone and nbs were found without inhibition effect
酚丙酮、小涅代唬拍酷亞胺剛b引等化學修飾劑對a葡萄糖轉苦酶的幾種氨基酸殘基進行選擇修飾,並測定其酶活力變化,結果表明: pcmb 、 me 、 edc 、 ciac能顯著抑制酶的活性,活力的下降與修飾劑的濃度有關,乙酚丙酮、 nbs白巾飾對酶的奪製作用不明顯。But at the same time, the expense security problem, especially food security problem also extremely prominently. the shocking event which affects and violates the consumers ’ safe and healthy from the sudan red event, iodine in nestle milk powder exceeds the allowed figure, to the soft drinks like fanda was questioned the benzene exceeds the allowed figure, use strong acid and strong alkali to produce food are exposed to public
與此同時,消費安全問題尤其是食品安全問題也十分突出,影響和侵害消費者安全健康消費的事件從震動全國的蘇丹紅事件、雀巢奶粉的碘超標,芬達、美年達等軟飲料被質疑苯超標、用強酸強堿等化學物質加工食品等事件的曝光,無不令人觸目驚心。As predicted theoretically, the ps polymer spreaded over the surface of the titania particles to form composite particles with core - shell structure. the influence of ph value and non - ion surfactant in heterocoagulation was discussed. the property of the coated particles was characterized by sem, and zeta potential, particle size distribution of the particles before and after encapsulation was obtained by laser particle size analyzer
根據機械力化學的原理,採用自行制備的微米級ps和pmma (聚甲基丙稀酸甲酯)高聚物微球、金屬粒子、納米級的tio _ 2 、爐料為原料粒子,通過採用自行研製的乾式沖擊設備和lg攪拌磨製得以高聚物微球、金屬粒子為核,納米tio _ 2 、碳黑粒子等為包覆粒子的具有不同特殊功能的納米微米復合粒子。Based on the analyses of water quality monitoring data of over 120 hydrometric stations in the yangtze river system during the last 30 years, the effect of lithology and climate rainfall on major ion chemistry of the river water has been studied by means of statistical approaches such as principal component analysis and correlation analysis
在分析長江流域120餘水文站點近30年水質監測數據的基礎上,運用主成分分析相關分析等數理統計方法研究巖性和氣候條件降水量對長江水系河水主要離子化學的影響。I have attempted to give equal weight to the three fundamental aspects of the study of organic chemistry: reactions, mechanisms, and structure.
對于學習有機化學的三個基本方面:反應,機理和結構,我試圖給予同等的重視。One of the content is using efficiently multimedia computer and maths software in teaching process, and potentiating the geometrical teaching by all appearances, translating the difficulty of knowledge, strengthening the understanding of concepts. another content is how to carry out the maths experiments, how to set up the problem for student. it can develop their habits or ability of studying work
研究的主要內容使如何有效地利用多媒體及數學應用軟體,加強高等數學的幾何直觀教學,化解知識的難點,加強概念的理解;開設數學實驗,創設探索數學問題的情景,培養學生探索數學問題的習慣和能力。Our previous work verified that heterotrimeric g protein was involved in regulation of pollen germination, tube growth and in the transmembrane mechanism of extracellular cam signal. in the present study, we provide further evidence that plc signaling pathway was presented in lily pollen and involved in extracellular cam signal transduction mechanism in pollen by molecular, biochemical and physiological approaches. these evidence included : the pip _ ( 2 ) - dependent plc activity was also detected in purified lily pollen protoplasts
為了給上述信號轉導過程提供進一步的證據,本文以百合花粉為材料,從plc活性的測定、 plc基因的克隆及其與花粉萌發的關系、以及plc活性被g蛋白和cam調控等方面,為肌醇磷脂系統參與花粉萌發和細胞外鈣調素的信號轉導過程進一步提供了分子生物學和生物化學的證據。Under the new regulation, it is an offence to possess any of the seven prohibited chemicals, any livestock feed containing these seven chemicals or to keep food animals containing residues of these chemicals
凡管有該七種違禁物品,或喂飼禽畜食用這些違禁物品,或其飼養的食用動物含有此等化學物殘餘,均屬違法。The equipment made by us of titanium, stainless steel, aluminum or plastics, mainly include column condenser ( heat exchanger ) ; coil hear exchanger ; membrane evaporator ; constant boil tower ; reactor ; pressure filter, storage tank ; blower, centrifuge and ta series corrosion - resist titanium pump, as well as variety of metal constructional member. they are widely applied in the industries of petrochmical engineering, smelt, pharmacy, chlorinate alkali, salt preparation, as well as electric chemical plant
我廠生產鈦材,不銹鋼等各種材質的化工設備,主要有風機,離心機,鈦泵,鈦閥,列管式冷凝器(換熱器) ;盤管式換熱器;薄膜蒸發器;塔器;反應器;貯存容器;面向石油化工,冶煉,制藥,氯堿,制鹽食品,造紙,環保等化學工業領域及電化行業。Most of our technical staff hold advanced degrees or have many years experience in organic chemistry
公司的大部分科研人員都具有高等學位,並有多年從事有機化學的工作經驗。From a viewpoint of organic synthesis chemistry, the recent development and applications of molecular iodine as a catalyst in organic reactions including the formation and cleavage of common protecting groups, oxidation, reduction, cyclization, addition, substitution and rearrangement are reviewed
從有機合成化學的角度,按反應類型綜述了分子碘作為催化劑在有機化學中的應用,碘催化的反應主要涉及保護基團的形成和裂解、氧化和還原反應、成環反應、加成反應、取代反應和重排反應等。分享友人