total yield

  • total yield
  • 释义

    总产量;总收获量

纠错 数据更新时间:2026-04-19 14:27:26
2、

The product purified by distillation in vacuum. The total yield was 87.4 % based on PCl _ 3.

产物通过减压蒸馏纯化, 以三氯化磷计,总收率达87.4%.

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3、

Triflumuron was synthesized by the reaction phenyl isocyanate and o-chlorobenznyel amide. The total yield was 77 %.

采用以对三氟甲氧基苯胺和光气为原料合成的异氰酸酯与邻氯苯甲酰胺加成反应制备杀铃脲, 产品总收率约77%.

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4、

In this paper, the method of synthesis of β phellandrene from β pinene was reported. The results showed that the time of splitting reaction was shortened by microwave irradiation and the product was separated easily. The total yield was 65.8%.

实验表明:采用微波裂解技术,以β蒎烯为原料,经磺化、微波裂解等两步反应制备β水芹烯合成路线短,且产物易分离,总收率为65.8%。

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6、

As the result, light energy utilization efficiency of cotton population and leaves at later growing stage were enhanced, total bolls and boll weight were increased remarkably, cotton lint yield were increased by 8.9%~ 9.3%, and cotton fibers tenacity was improved.

显著降低非光化学猝灭系数(NPQ),从而提高了后期群体和叶片对光能的利用;有效地增加了总铃数和铃重,使子棉产量提高8.9%~9.3%,纤维比强度增强。

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7、

The total yield and purity of 4-chlorohenzoyl chloride was 94.6 % and 99.3 % , respectively.

以对氯 甲苯 为原料,经氯化、水解反应合成对氯苯甲酰氯,总收率为94.6%,产品含量为99.3%.

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8、

The reaction was intermittent. The yield per pass of o methyl benzoic acid is up to 47% with a total yield of up to 62 36%.

试验为kg级工业模拟中试试验,反应为间歇式反应,原料邻二甲苯一次投料量为4.2kg,目的产物为邻甲基苯甲酸,单程收率可达47%,总收率可达62.36%。

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9、
10、

The total yield and 4-chlorohenzoyl chloride. 6 % and. %.

以对氯甲苯为原料,经氯化、水解反应合成对氯苯甲酰氯,总收率. 6%.%.

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11、

The percentage of plywood timber to total yield decreases with increase of planting density in the site indices 14,16 and 18 m;

胶合板材产量随立地指数的增大而增大,且占总产量的百分比在立地指数为14、16、18m时,随造林密度的增大而减小;

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12、

The evaluation results showed that under optimized process conditions, the ethylene yield of typical paraffinic atmospheric residue through single pass cracking reaches 26% and the total yield of olefins ( C 2~ C 4) exceeds 50%.

评价试验结果表明,典型石蜡基常压渣油在优化的工艺条件下,单程裂解的乙烯质量产率可达26%,C2~C4总烯烃质量产率超过50%。

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13、

The researchers estimate that the total yield of cattle and tortoise meat, at least 17 kilograms, could have fed 35 or more people.

研究人员估计这些牛肉和龟肉总共至少有17公斤,足够35个人甚至更多的人吃。

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14、

Chrysophanic acid ( 6) in total yield of 40.4% was synthesized from 3-nitrophthalic acid by dehydration, Friedel-Crafts acylation, reduction, diazotization, hydrolysis and cyclization.

以3-硝基邻苯二甲酸为原料,经脱水、傅克酰基化、还原、重氮化、水解和环合反应合成了大黄酚(6),总收率40.4%。

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15、

RESULTS: The total yield of o amino benzonitrile was 71.2%. The final product was identified by melting point.

结果:合成的产率为71.2%,结构经熔点确证。

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16、

In seven steps, the key intermediate epoxy compound, to build cycle carbon-skeleton of Lycorine-type alkaloids, is synthesized in a total yield of 49.3%.

经七步反应,以49.3%的总收率得到构筑Lycorine型生物碱环碳骨架的关键中间体环氧化合物。

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17、

The total yield and energy spectra of the secon-dary particles of thermonuclear reaction

热核反应中次级粒子的总产额和能谱

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18、

The yield of total isoflavones Rhizoma Belamcandae by the purity reached 60 %.

采用该工艺射干总异黄酮纯度达60%.

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19、

The synthetic routes of CV-4151 were studied and the total yield of 9 steps amounted to 16. 2%. The structure was elucidated through physic-chemical properties and spectroscopic analyses.

主要通过傅克酰基化反应、氧化反应、魏悌希反应等九步反应合成了CV-4151,总收率达16.2%,其化学结构经核磁共振氢谱、红外光谱确证。

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20、

The reaction total yield exceeds 70%.

反应总收率达到70%以上。

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21、

The obvious peculiarity of extracting oil of highly-watery stage is that the total liquid yield rises ceaselessly and the temperature of out well also increases, this has the condition which makes the well whole year or seasonal without heating transportation come true.

油田进入高含水采油期的一个显著特点是总液量不断上升,井口出油温度升高,具备了全年或季节性不加热输送或降低掺水温度输送的条件。

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22、

If the shares cost 5 Op and the total annual dividend is lop the yield is 20 %.

假如股价为50便士,全年股息为10便士,则收益为20%.

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23、

After acidic hydrolysis, phenylalanine was obtained with total yield of 62.5 %.

然后经酸性水解得苯丙氨酸消旋体.

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24、

Experimental results showed that when the pyrolysis oxygen concentration increased, the CO2 concentration in the product gas increased, while CH4 concentration and total tar yield decreased.

结果显示热解气氛中氧气浓度增加导致部分氧化后CO2产量增加,H2含量下降,焦油总量下降。

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25、

Coilia ectenes belongs to Clupeiformes 、 Engraulidae 、 Coilia Gray, an important economic anadromous fish, which has large distribution in the middle and lower reaches of the Changjiang River or inshore land, a lagre proportion in local total yield.

鲚属鱼类隶属于鲱形目(Clupeiformes)、鯷科(Engraulidae),是江海洄游性鱼类,也是长江中下游及沿海一带重要的经济鱼类之一,占当地渔业总产量的比例甚大。

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26、

One-off yield from thebaine to natrexone hydrochloride is 31%, and total yield can up to 44%.

从蒂巴因到盐酸纳曲酮一次性可以收率为31%。

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27、

Catalytic hydrogenation reaction system of 5-{ 4-[ 2-( Methyl-pyridin-2-yl-amino)-ethoxy] benzylidene}-thiazolidine-2, 4-dione ( 3) was optimized and the total yield was 21.6%.

优化了5-{4-[2-(甲基-2-吡啶氨基)-乙氧基]-亚苄基}-噻唑烷-2,4-二酮(3)的催化氢化反应条件从而以21.6%的总收率合成得到了罗格列酮。

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28、

Total bond fund sales stood at almost US$ 23bn at the end of August with high yield bonds accounting for 26 per cent of these gross sales; the trend has continued in the fourth quarter.

债券基金销售总额在8月底保持在近230亿美元的水平上,其中高收益债券的销售占到26%;第四季度继续延续这种趋势。

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29、

The results show that the ultimate tensile strength and yield strength of the alloys rise but the total elongation decreases as the temperature of quench medium drops.

结果表明:随淬火介质温度的降低,淬火降温速率提高,合金的强度增加,塑性下降;

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30、

The process of technology included diazotization, diazo coupling reaction and reduction. The total yield was 60%, the purity of mesalazine ≥ 99.0%.

工艺过程包括重氮化反应、重氮耦合反应和还原反应,总收率60%,产品含量≥99.0%。

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