弱酸性的 的英文怎麼說
中文拼音 [ruòsuānxìngde]
弱酸性的
英文
acidulous-
The mineralization temperature is in a range of 90 ~ 300, and the mineralization fluid is a combination of slightly acidic - slightly alkalic precipitations, seawater and magmatic water
其成礦溫度在90 ~ 300之間,成礦流體為低鹽度的弱酸性弱堿性大氣降水、海水和巖漿水的混合溶液。An analysis of acidity of phenyl replacing acid and benzoic acid
苯基取代酸和取代苯甲酸的酸性強弱淺析By infrared spectrum study, the limonite ( feooh nh2o ) can be considered the main colorating mineral in the yellow and red jadeite, and the hematite is another colorating mineral in the red jadeite. the difference of color tone is due to the n value in the molecular formula feooh nh2o and the content of crystal water and adsorbent water. the iron ion came from the effloresced and eroded rocks, and formed fe ( oh ) 3 colloid reacted with the surface water
周圍礦床的風化蝕變為表生水提供了鐵質,形成弱酸性的含fe ( oh ) _ 3膠體的水溶液,表生水流經翡翠礦石時, fe ( oh ) _ 3膠體附著在巖石的表面,經過脫水結晶和吸附,形成褐鐵礦膠體,褐鐵礦膠體沿裂隙或鬆散的礦物顆粒進入翡翠巖石中,逐漸累積沉澱,形成次生色層。Study on the dissolving process of powdery patina in neutral and in weak acid aquatic solution
弱酸性環境中溶解過程的實驗研究To neutralize the function of cam, the cam binding domain peptide from bovine calcineurin a subunit was chosen because the pre - experiment demonstrated that bovine calcineurin could bind to calmodulin strongely in an acidic and high calcium concentration condition which is similar to the cell wall environment. in order to increase the binding ability of the chimeric secreted calmodulin binding peptide, the plasmid containing two copies of calmodulin binding domain were constructed
它共有26個氨基酸,具有信號肽的典型特徵。為了削弱質外體cam的功能,選擇了牛腦鈣調神經磷酸酶can ( calcineurin )的a亞基的cam結合域。預實驗結果表明,在近似於胞外環境的酸性高鈣條件下can與cam有強結合。Analysis on the buffer action of three kinds of different soils from two soil types of the north of henan, showed that the order of buffer action acid and alkali of three kinds of different soils was as following : chao soil with high fertility > lime drab soil > chao soil
摘要對豫北地區的2個土類3種不同土壤的緩沖性能進行分析研究,結果表明:供試土壤對酸、堿的緩沖性強弱依次為高肥潮土褐土潮土。Abstract : the extraction of purple pigment from brassica campestris and its stability were studied. the pigment is stable under acidic condition, worth to develop in food industry
文摘:以紫菜薹為原料,用30乙醇溶液浸提制得紫菜薹色素,並對其理化性質進行了研究。結果表示該色素在弱酸性條件下,具有較好的穩定性,在食品工業中有一定的開發利用價值。Natural mild acidic foaming agent that is similar to the skin ' s ph level ; able to create rich leather cleansing foams and makes the skin feeling fresh without drying
天然的弱酸性起泡劑,與皮膚之酸鹼值貼近,可產生豐富細致的泡沫,洗后肌膚健康清爽,沒有繃緊作用。In a word, wbaer can effectively remove micro - quantity hmi from dk with alkali metals, alkaline - earth metals and anions at high concentration. on the basis of lots of regeneration experiments of wbaer ( d301g ), the best regeneration manner ( regurgitation regeneration ), the optimal regeneration agents ( h2so4 and naoh ) and the optimum operating parameters of regeneration are obtained
論文進而對d301g型弱堿性陰離子交換樹脂進行了再生試驗研究,確定了最佳再生方式(逆流再生) ,最佳再生劑( h2so4和naoh )以及酸液再生時的最佳濃度范圍( 2 % 4 % )和最佳流速范圍( 3 4m / h ) ;並通過正交試驗確定了逆流再生過程中的最佳運行參數組合。Results showed that during hydrothermal degradation, the contents of hemicellulose and cellulose in lawn - grass and weeds decreased while the content of lignin increased due to derivation and condensation
結果表明,在濕解過程中草坪草和雜草中半纖維素、纖維素的相對含量呈減少趨勢;木質素類物質經過衍生和小分子縮合后,其相對含量呈增加趨勢;濕解最終產物呈弱酸性,可以用來改良堿性土壤。The reservoir sensitivity test turns out that the velocity sensitivity of the basin is weak to medium, water sensitivity is strong in first sag and third sag and weak in the second sag. acid treatment indicates that several types of acid on the spot are unfit for acid stimulation in the basin and it is necessary to discover new acid treatment method and prescription
儲層敏感性實驗研究證明,盆地的速敏性為弱到中速敏,水敏性第一和第三凹陷較強,而第二凹陷的水敏性相對較弱;酸化研究表明,現場目前使用的幾種酸型配比小適合對該盆地進行酸化改造,必須探索新的酸化途徑和配方。Preparation of a new weakly acidic cation exchanger and the evaluation of cations by non - suppressed ion chromatography
新型弱酸性陽離子色譜柱的制備及非抑制型離子色譜法電導檢測The comparative analysis of sequences indicated that the sequences of meq in different pathotypes are relatively conserved and the homology of the amino acid sequences is very high. the significant differences include two mutations in both mdv - 1 vaccine strains cvi988 / rispens and 814 strain : the deletion of a proline ( no. l93aa ), and this mutation is just exactly located in a 15 - amino - acid ( eelcaqlcstppppi ) repeat sequence within the c - terminal transactivation domain of meq protein ; and a point mutation with a shift from alanine ( a ) of all virulent strains to serine ( s ) was occurred on the no. 71 aa
結果發現, mdv不同致病型的meq基因序列相對比較保守,它們相互間核苷酸和氨基酸序列的同源性均很高;但是,與所有七個致瘤性的mdv毒株相比,二個型弱毒疫苗cv1988 rispens株和814株均出現了兩個特徵性的突變:即第194位的p缺失性突變和第71位氨基酸由a變成了s的位點突變;缺失性突變恰恰位於meq基因中轉錄激活域內的一個多脯氨酸的重復序列( pppp )之中。When the weak acid is given orally, the concentration gradient for un - ionized drug between stomach and plasma tends to be large, favoring diffusion through the gastric mucosa
當這種弱酸性藥物經口服給藥時,胃與血漿之間的非解離型藥物濃度梯度很大,從而有利於透過胃粘膜擴散。However, as far as the surface of nature sepiolite is concerned, its acidity is weak, and the channel is narrow, and its thermo - stability is poor, which lead to defects such as the destroying effect on the component structure of molecular sieve on the condition of water steam
但天然海泡石存在表面酸性弱,通道小,熱穩定性差以及在水蒸氣條件下對分子篩組分結構有破壞作用等缺陷,故對天然海泡石進行改性是使其成為催化劑載體所必作的工作。Note : guide gas cable of cable liquid - level transmitter adopts high - performance environmental protection material such as import abrasion - proof, weak acid - proof contraction, anti - low temperature, and may apply for food, medicine and other survey fie
注:纜式液位變送器的導氣電纜採用進口耐磨耐弱酸抗低溫等高性能的環保型材料,可用於食品醫藥等測量現場。Note : guide gas cable of cable liquid - level transmitter adopts high - performance environmental protection material such as import abrasion - proof, weak acid - proof concentration, anti - low temperature, and may apply to food, medicine and other survey field
注:纜式液位變送器的導氣電纜採用進口耐磨耐弱酸抗低溫等高性能的環保型材料,可用於食品醫藥等測量現場。Meadow sweet protects and soothes the mucous membranes of the digestive tract, reducing excess acidity and alleviating nausea
歐洲合歡子可保護及舒緩消化道的膜、減弱過多的酸性和舒緩反胃。We extractct sam from the cell by the perchloric acid, then neutralize the extraction with khco3. using the weak - acid caion exchange column chromatography we separate sam from the mixure
本文根據sam帶電性,確定了先高氯酸抽提、 khco _ 3中和,再用弱酸性陽離子交換樹脂純化的工藝路線。Electrochemical study on the corrosion behavior of x70 steel in acid solutions with so
2的弱酸性溶液中的腐蝕行為的電化學研究分享友人