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Up to 95.01% yield of 2-amino-2'-hydroxy-1,1'-binaphthyl was obtained in chlorobenzene using the oxidant with 10% FeCl3 loading on the support containing 5% TiO2 at 60 ℃. The activity of the used oxidant was improved by treatment with H2O2, which provided an effective method to regenerate the solid-oxidant.

结果表明:在60 ℃,氯苯作溶剂的情况下,含TiO25%的载体,负载10% FeCl3时2-氨基-2'-羟基-1,1'-联萘的收率最高达到了95.01%;用过的固体氧化剂经H2O2氧化处理后活性明显恢复,证明此法是一条循环再生的有效途径。

A pot experiment was carried out in greenhouse to observe the yield, the absorption amount of cadmium and zinc of rape( Brassia campestris L.), and soil pH responses to different amendments applied in red soil, a typical soil of China.

采用盆栽试验,研究了施用改良剂—石灰、有机肥、海泡石对红壤上小油菜生物产量、镉锌吸收量、pH、吸收系数的影响。

Apart from the clear effects on crop growth and grain yield, limiting availability of S has been shown to favour the synthesis and accumulation of S-poor or low-S storage proteins such as ω-gliadin and high molecular weight subunits of glutenin at the expense of S-rich proteins. These changes in protein composition are associated with alterations of dough rheology. Significant responses of breadmaking quality to the addition of S fertilisers have been observed under field conditions.

hm^(-2)左右。缺硫除了对小麦生长和产量有影响,籽粒偏向于合成和积累贫硫或低硫贮存蛋白,如ω-醇溶蛋白和高分子量谷蛋白亚基,而蛋白质组成的变化与面团流变学特性改变有关,大田条件下增施硫肥显著改善了面包品质。

Study the result makes clear, content of Potassium of quick result of soil of area of high yield wet earth is 287.476gkg-1 on average, highest for 483.433gkg-1, lowest is 119.435gkg-1, bulbiform model is Potassium of edaphic quick result the optimal model that successional space distributings, its gold nugget is worth / floor sills value is 0.399, potassium of demonstrative soil quick result is changing the dimensional variability that Cheng has moderate strength inside the limits for 57.691 meters, the area of content discretion distributings more apparent, in the southeast of plot the ministry is mixed mid it is the area with its higher content, two content is inferior outstanding area show typical circle layer to distributing, increase by degrees by the content outside introversion, have stronger gradual change sex to distributing the rule.

探究结果表明,高产潮土区土壤速效钾含量平均为287.476gkg-1,最高为483.433gkg-1,最低为119.435gkg-1,球状模型是土壤速效钾连续性空间分布的最佳模型,其块金值/基台值为0.399,说明土壤速效钾在变程为57.691米的范围内具有中等强度的空间变异性,含量高低的区域分布比较明显,在地块东南部和中部为其含量较高的区域,含量较低的两个突出区域呈典型的圈层分布,由内向外含量递增,具有较强的渐变性分布规律。

Several researchers in Canada capably responded to the challenge issued in the 1980s to conduct Maximum Yield Research on important crops of their regions.

八十年代,加拿大出现了高产研究,一些研究者在其所在地区的主要农作物上成功地进行了一些工作。

Similarly, IVB〓 reacted with carboxylic acids in DCC/DMAP/DCM system to produce ten new 5-IVB〓 esters in 66-82% yield. AVB〓 or IVB〓 also reacted with carbamino chloride or phosphoryl chloride in IM/DMAP system to produce eight corresponding carbamates or phosphorylates in good yields.

阿维菌素B〓与氨基甲酰氯反应,合成了2个5-AVB〓氨基甲酸酯衍生物:阿维菌素B〓与膦酰氯反应,合成2个5-AVB〓膦酸酯衍生物;并改进了阿维菌素与酰氯的反应条件,缩短了反应时间,提高了产率和反应的选择性。

This gallant troop, after being forced to yield the Pasir Panjang Ridge the night before, withdrew to Bukit Chandu or Opium Hill.

这勇敢的连队在失去了第一防线后,退守到鸦片山据点。

The optimum synthetic conditions of ethyl chloroacetate are: molar ratio of chloroacetic acid to ethanol is 1:8, the quantity of catalyst[Fe2(SO4)3 xH2O] is 10% of the mass of chloroacetic acid, reaction time is 1 hour, 5A zeolite was used as dehydrating agent. In these conditions, the yield of ethyl chloroacetate was up to 73%.

用Fe_2(SO_4)_3·xH_2O作为催化剂合成氯乙酸乙酯的较佳反应条件是:酸醇物质的量之比为1:8,催化剂用量为氯乙酸质量的10%,以5A分子筛作为脱水剂,回流时间1h,收率达73%以上。

The use of ground forces to secure the area long enough to do the job would be highly risky; the use of a low-yield nuclear weapon, as some suggest, might work physically but is hardly conscionable politically—or morally.

出动地面部队拉开战线行动未免过于危险。像某些人建议的那样使用低当量核武器,可能对人体非常有效但是于政治层面或者人道层面来讲又不忍心。

Under the instruction of above-mentioned theoretical results, in the thesis chapter 10, the strongly electron-withdrawing anion, C_5O_5~(2-)[dianion of croconic acid (4,5-dihydroxycyclopent-4- ene-1,2,3-trione)], was chosen as the chelator to coordinate with boron to form lithium salt, which will yield high ionic conductivity solutions, and exhibit wide electrochemical stability windows and high thermal stability. As described in the chapter, two new lithium salts containing C_5O_5~(2-), lithium bisborate and its novel derivative, lithium borate for Li-ion battery electrolytes were synthesized.

在上述理论结果的指导下,论文第十章选择了克酮酸二价阴离子——具有很强的酸性、较好的芳香性、较大的电荷分散性、形成的配合阴离子具有较显著的共轭性——作为配体与B配位,合成了二种新的锂盐,通过实验测定了它们的结构和在有机溶剂中的溶解性。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。