氫 的英文怎麼說中文拼音 [qīng]
氫 英文名詞[化學] （氣體元素） hydrogen （h）
Using refined cotton, chloroacetic acid, sodium hydroxide and hydrogen peroxide as main feedstock, sodium carboxymethyl cellulose was made by the process of basification, etherification, abstersion and drying
摘要以精製棉、氯乙酸、氫氧化鈉和過氧化氫為原料，經過堿化、醚化、洗滌、乾燥，制得羧甲基纖維素鈉。Meanwhile adopting two - step process of viscosity - decreasing method, i. e. adding hydrogen peroxide during the process of basification and abstersion to decrease the viscosity of alkaline cellulose, as a result the sodium carboxymethyl cellulose with ultra low viscosity was obtained
同時，採用二步降粘法，在堿化及洗滌過程中加入過氧化氫，以降低纖維素鈉的粘度，制得超低粘度的梭甲基纖維素鈉。Methods the antioxidant of 75 % ethanolic extract and organic solvent extracts, water extracts and polysaccharids from acanthus ilicifolins l. was detected by flow - injection chemiluminescence, to evaluate the ability of scavenge h2o2
方法採用流動注射化學發光法，研究該植物75 %乙醇提取物及其有機溶劑萃取分離部分、水提取物及多糖對過氧化氫（ h2o2 ）的清除作用。With the continuous training under the handlers, sasha and dexter will be capable of identifying up to 14 kinds of hydrocarbon accelerant
經過領犬員的持續訓練，莎莎和德仔將可嗅覺出多達十四種碳氫化合物助燃劑。Fire investigation dogs, sasha and dexter, have been initially trained for the detection of hydrocarbon accelerant in birmingham, uk in 2006
火警調查犬莎莎和德仔於二零零六年在英國伯明翰接受偵測碳氫化合物助燃劑的初步訓練。Purification of acetaldehyde dehydrogenase from thermoanaerobacter ethanolicus jw
200中乙醛脫氫酶的純化Zinc displaces the hydrogen of dilute acids.
鋅置換了稀酸中的氫。Analytical condition were as follows, column : 10 % modified polyethylene glycol 20m on acid washed 201, 2m column with 3 mm i. d., fid as detector, phe - nylmethyl ketone as internal standard compound
以10 %改性聚乙二醇20m為固定液，苯乙酮為內標物，氫火焰離子化檢測器，內標法定量分析異辛酸。In metabolic acidosis the reverse process occurs, and the excess hydrogen ion exchanges for sodium with retention of greater amounts of potassium
在代謝性堿中毒中，會出現相反的過程，過多氫拿交換使得大量的鉀離子保留在體內。Many most attractive and enthusiastic women also commit suicide by stabbing, drowning, drinking prussic acid, aconite, arsenic, opening their veins, refusing food, casting themselves under steamrollers, from the top of nelson s pillar, into the great vat of guinness s brewery, asphyxiating themselves by placing their heads in gas ovens, hanging themselves in stylish garters, leaping from windows of different storeys
有用匕首刺胸口的，有自溺的，服氫氰酸附子或砒霜的，割動脈的，絕食的，縱身投到蒸氣碾路機輪下的，從納爾遜紀念柱頂上跳進吉尼斯啤酒公司那巨大酒桶里的，還有把頭伸到煤氣灶底下氣絕身死，用時髦的襪帶自縊，或從各層樓窗口跳下的。The acetaldehyde dehydrogenase ( acdh ) and alcohol dehydrogenase ( adh ) of the adhe mutants and parent strain were assayed with a result that the acdh activities of mutants were less than 10 % of the parent strain and the adh activities of mutants are about 10 % of the parent strain
6個adhe ~ -突變株的乙醛脫氫酶活性均降低為親株的10以下，乙醇脫氫酶活性降低為親株的10左右； 4個ldha ~ -突變株的乳酸脫氫酶活性均降低為親株的7以下。The principal adrenocortical products are aldosterone, cortisol and dehydroepiandrosterone sulphate.
腎上腺皮質的主要產物為醛固酮、皮質醇和脫氫異雄酮硫酸鹽。The presence of dihydrolinalyl acetate in the lavender oil exposes the synthetic source and can be considered an adulterant
這樣的話二次產物乙酸二氫芳樟酯就作為一種摻雜物存在薰衣草油裏面。The contents of three valepotriates in v. officinalis also varied significantly different areas, samples from nanchuan of chongqing showing the highest. it is also showed that the contents of three valepotriates in underground part of valerians plants are higher than that in aerial part and the contents of three valepotriates in valeriana jatamansi herb and v. officinal is herb collected in september is highest. valepotriates of valeriana jatamansi were obtained using petroleum ether, with content of valtrate, didrovaltrate and acetovaltrate between 70 % and 80 %
我們以採用rp - hplc法測定不同產地、部位和採收期的纈草屬植物中纈草素、二氫纈草素和乙酰纈草素的含量，結果發現纈草類生藥蜘蛛香、纈草、寬葉纈草和黑水纈草之間纈草素類成分含量差異顯著，其中以蜘蛛香含量最高，纈草次之，寬葉纈草再次，黑水纈草含量最低。The zinc / air battery supplies energy for the constant load and operates for the basic energy supplement
鎳氫電池工作在中級能量區，並回收剎車過程中的能量。In section one, by using fice scheme and time - gcm, a model of trace gases and oh airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and oh airglow are analyzed. the result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. in this process, gravity wave undergoes growth, overturning, convection and breaking
在第一部分的工作中，利用全隱歐拉格式和全球熱層-電離層-中間層-電動力學環流耦合模式（ time - gcm ） ，對重力波的非線性傳播及其在傳播過程中對中高層大氣中氧族和氫族成分和與之密切相關的oh氣輝輻射的影響進行了數值模擬，結果表明，從對流層向上傳播的重力波經歷了產生、發展、飽和、對流產生直至破碎的非線性演化，大氣的非等溫結構加速了重力波在中層頂區的破碎，重力波的非線性傳播是小尺度對流和湍流產生的一個重要的源。It is resistant to borohydride reduction in alcoholic solvents.
在醇溶劑中，它不能被硼氫化物還原。The advance of chiral phosphate - ester ( phosphonate - ester ) [ phosphoramides ( phosphonyl - amide ) ] in asymmetric alkylation reaction, aldol reaction, hydrogenation reaction, cyanosilylation reaction was reviewed with 48 references
討論了手性膦（磷）酰胺及膦（磷）酯酯催化劑在不對稱烷基化、不對稱縮合、不對稱氫化、不對稱氰矽化等反應中應用的最新研究進展。參考文獻48篇。The experimental results showed that in the condition of this experiment four algaecides all had strong removing rate on algae, and their removing rate increased with dose increasing, and decreased with algae density increasing. according to the removing rate on algae and cost value or so, the sequence of four algaecides from good to bad were potassium permanganate, copper sulfate, hydrogen peroxide and sodium hypochlorite. in the condition of this experiment, the suitable dose of potassium permanganate was 0. 8mg / l, the algal removing rate was beyond 90 % and the cost of this algaecide was only 0. 0068 / m3. the efficiency of algae removal by four algaecides for huanghe river water was studied. the results showed that the majority of huanghe river water was bacillaroiphyta, and the dominant genera was melosira, which reached 78 % ~ 94 %
結果表明，在實驗條件下，四種殺藻劑均具有一定的殺藻效果，藻類去除率均隨藥劑投量的增加而提高；原水藻類數量影響殺藻劑殺藻效果，四種殺藻劑的藻類去除率均隨原水藻類數量的增加而降低；通過殺藻效果、經濟性以及安全性等方面的綜合比較，對于以有毒藍藻為優勢藻屬的引灤水，四種殺藻劑的優劣程度從優到劣排序為：高錳酸鉀硫酸銅過氧化氫次氯酸鈉；在實驗條件下，高錳酸鉀適宜投加量為0 . 8mg l ，藻類去除率高於90 ，所需的藥劑費用僅為0 . 0068元m ~ 3 。Those that are aligned in the place are called equatorial hydrogens.