查询词典 yield
- 与 yield 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The effects of benzene, triethylamine, diethylamine and ethylene diamine on the shape, yield, N-dopping content and water-adsorption content of CN were discussed. CN materials with moderate N/C ratio (0.15) and high yield 2.2 g(gcat^(-1) were synthesized using diethylamine as the raw material.
比较了苯、三乙胺、二乙胺、乙二胺四种原料对合成CN形貌、产率、掺氮量和吸水率的影响;以二乙胺为原料合成出适中的氮碳比(N/C原子比为0.15)和较高产率2.2 g(gcat^(-1)的竹节状CN材料。
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Its mechanism is the use of anthraquinone in alkali conditions off proton surface forming 10 more stable carbon anion face, but because carbon anion and oxygen ion exist between testosterone and enolate type each other changes, cause reaction product complex, at least five, reaction selectivity, product yield, separation difficulties, and product purity is not high, therefore, using the type and quantity of alkali, phase transfer catalyst type, solvent, to optimize the selection process conditions so as to improve the yield target product.
其机理是利用蒽酮在碱存在的条件下脱去氢质子面形成10位较稳定的碳负离子面进行,但是因为碳负离子和氧负离子之间存在酮式和烯醇式的互变,导致反应复杂,产物至少有五种,反应选择性差,产物分离困难,产率低,且产品纯度不高,因此,利用对碱的种类和量的多少,相转移催化剂的种类,反应溶剂的选择,来优化反应工艺条件从而提高目标产物的产率。
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The second synthetic strategy commenced from butane-1,4-diol 50, which underwent monobenzylation, Swern oxidation, enolization followed by acetylation and debenzylation to yield an intermediate 46 in an overall yield of 54% in a 4-step procedure.
第二条路线从1,4-丁二醇50开始,这个化合物经过单苄基化、Swern氧化、烯醇化随后乙酰化和脱苄基化共4步反应得到中间体46,总产率54%。
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In this paper, titanium ethoxide was synthesized by the direct electrochemical method. The production was characterized by Raman spectra. The effects of different factors on the voltage, current efficiency, material yield and space-time yield were investigated.
采用直接电化学法合成乙醇钛,采用激光拉曼光谱对产物进行了表征,详细探讨了电解时间、电流密度、支持电解质浓度、电解液温度以及电极间距对槽电压、电流效率、产物收率和时空产率的影响。
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The results showed that the higher peptides yield was 38.96mg/g on the conditions of 1% brown sugar power,initial pH7.5,temperature 30 ℃,rotational speed 180 r/min and the substrate 7%,which was fermented 48 h.The higher yield of free amino acids was 0.344% when ferme...
结果表明,发酵培养基碳源为红糖粉添加量1%,发酵初始pH 7.5,发酵温度30℃,转速180 r/min以及底物浓度7%,发酵48 h时多肽含量达到38.96 mg/g,当发酵时间持续到72 h可得到较多游离氨基酸,含量为0.344%发酵48 h发酵液的香味较好。
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The results showed that the highest yield of GLP among six strains was ShuShe.The effects of carbon source, nitrogen source, salt and the optimum initial pH value of medium on GLP produced by ShuShe were studied in liquid and solid fermentation respectively. The liquid and solid fermentive medium of high yield was selected by orthogonal experiment.
分别对液态发酵和固态发酵两种发酵方式的碳源、氮源、盐、培养基的起始pH 等对该菌株灵芝多糖生物合成的影响进行了研究,通过正交试验确定了高产灵芝多糖的液态发酵培养基和固态发酵培养基,液态发酵培养基的组成为:麦芽糖,3%;蛋白胨,0.4%;KH2PO4,0.15%;MgSO4,0.05%;培养基起始pH 为6。
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The formyl-2.2-bisferrocenyl-propane was synthesized by formylation reaction of 2.2-bisferrocenyl-propane with DMF in the presence of POCl3 in CHCl3 at (55±2)℃ in high yield and conversion, the diformyl-bisferrocenyl-propane was also obtained simultaneously in low yield.
随着二茂铁化学基础理论的发展及二茂铁衍生物的大量合成,人们也逐步发现了它们在许多领域的应用前景[1],尤其是作为燃速催化剂,具有比金属氧化物更高的燃速催化效果。
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The formyl-2.2-bisferrocenyl-propane was synthesized by formylation reaction of 2.2-bisferrocenyl-propane with DMF in the presence of POCl3 in CHCl3 at (55±2)℃ in high yield and conversion, the diformyl-bisferrocenyl-propane was also obtained simultaneously in low yield.
随著二茂铁化学基础理论的发展及二茂铁衍生物的大量合成,人们也逐步发现了它们在许多领域的应用前景[1],尤其是作为燃速催化剂,具有比金属氧化物更高的燃速催化效果。
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Studies on the mutant breeding of high-yield gibberellins strain The protoplast of Gibberella fujikuroi m978 were treated by mutation breeding forhigh-yield gibberellins, LiCl mutation was better than DES mutation or UV irradiation ifsingle mutation, but any single mutation was worse than compound mutation by whichthe mutants were more overproducting and genetically stable.
采用传统诱变育种,筛选高产菌株在原生质体条件下,对赤霉素产生菌m978的原生质体进行菌种选育;使用单因子诱变方法,LiCl处理的效果优于DES诱变和UV诱变;复合诱变比单因子诱变更容易得到高产突变株,且获得的高产突变株稳定性更优。
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There were close relation and harmonies among the quantities characters that were significantly hereditarily correlated with tumorous stem yield. High yield breeding combining with strong ecological adaptability and good quality should be largely based on later maturity, tumorous stem diameter, whole plant weight and higher ratio of stem and leaf.
瘤茎产量与营养生长期、瘤茎膨大期、瘤茎横径、茎/叶、株鲜重呈极显著遗传正相关,与菜形指数、菜皮百分率呈极显著遗传负相关,与其余性状相关均未达显著水平;与瘤茎产量显著相关的性状间关系密切,有很好的协同性,分析提出茎瘤芥育种选择熟性晚、瘤茎横径大、茎/叶高和植株个体较大的品种,可实现品种产量高、生态适应性强和瘤茎品质较佳等三者的协调统一。
- 相关中文对照歌词
- Yield My Heart
- Chase The Morning
- I Yield
- Die With Honor
- Wise Up Ghost
- Yield To Temptation
- Out My House
- Men of Harlech
- The Soul Is The Rock
- Two Hearts
- 推荐网络例句
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Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.
维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。
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We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.
我们需要您cosign我们的公共信,要求记者立即停止恐吓,并要求所有收费下降。
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Finally, some conclusions are generalized at the end of this thesis.
最后,对全文工作进行总结,归纳本文的主要结论。