查询词典 yield strength

This paper introduces in detail the factors influencing the yield of the amino acetic acid with the chloroacetic acid ammonolysis process, and connecting with the production procedures, makes deep analysis, and puts forward some corresponding methods for increasing the yield.

详细介绍了氯乙酸氨解法氨基乙酸生产过程中影响收率的因素，并结合生产过程进行了深入分析，有针对性地提出了提高收率的办法。

The results indicate that the optimized sulfonylation reaction time is 4 h, the materiel rate of chlorosulfonic acid and 2-chloroimidazo[1,2-α]pyridine is 1.2 : 1, with ethylamine the yield increasing from 15.4% to above 70%; the optimized ammonolysis reaction time is 3 h and the reaction temperature is 27℃, with the acetonitrile yield increasing from 60.1% to above 79.6%.

实验结果表明，磺酰化反应的最佳反应时间为4 h，氯磺酸与2-氯咪唑并[1，-α]吡啶的用量比为1.2：1，加入三乙胺可将收率由15.4%提高到70%以上；氨解反应的最佳反应时间为3 h，反应温度为27 ℃，加入乙腈可将收率由60.1%提高到79.6%；方案经改进后，总反应时间缩短3 h，收率提高了5.5%。

According to the approximation ability of WNN, the nonlinear system is able to be modeled, obvious effect was shown in process modeling of residuum cracking and prediction of asphaltum yield and pyrolysis gas yield.

利用小波网络的逼近性，对非线性系统进行建模和预测，通过渣油裂解的实例，将小波网络与RBF网络作为对比，可以看出，小波网络的建模和预测效果都优于RBF网络。

The result showed that with the increasing of density, plant height was increased, stem diameter and ear diameter was decreased, ear was shorten, rare top length、No. of ear nod、ear height was increased;brace root number and total root number was decreased, the rate of root dry weight was increased within farming layers; population dry matter accumulation was increased and plant dry matter accumulation presented the opposite trend; ear linage、kernels per ear、100-kernels weight、double-ear rate、plant yield was decreased, yield was increased and decreased successively.

结果表明：随群体密度的增加植株高度增高、茎粗、穗粗变细、果穗变短，秃尖长度、穗位节数和穗位高度呈现增加的趋势；气生根与总根数减少，耕层根系干重比例增加；群体干物质积累量随密度增加而增加，单株干物质积累量呈相反的趋势；穗行数、穗粒数、百粒重、双穗率、单株产量均随密度的增加而减低，群体产量先增后降。

Because a yield break statement unconditionally transfers control elsewhere, the end point of a yield break statement is never reachable.

由于一个yield break语句无条件地将控制转移到其它地方，因此一个yield break的终点将永远不可达。

Some materials were synthesized in this paper at first, 1-nitro-2-pentanol was synthesized with nitromathane and butyraldehyde and the yield was 70.2%; l-nitro-2-pentanol was reduced to 1 -amino-2- pentanol with iron and the yield was 65.2%.

分别用氢氧化钠、三乙胺为缚酸剂，2-氨基-1-丁醇、1-氨基-2-戊醇、环己酮和二氯乙酰氯为原料，采用一步法和分步法合成了两种潜在除草剂安全剂。

According to the investigated materials and after the crops yield increasing targets in various different years or average yield increasing targets of some years in planned irrigated areas have been determined, the analysis and calculation of the benefits of irrigated areas' engineering can be made.

根据调查资料，规划灌区各种不同年份农作物增产指标或多年平均增产指标确定之后，即可对灌区工程的效益进行分析和计算。

It is projected that in 2000, the grain yield per capita will reach 400-424 kg or total yield of 500-530 million tons, with the development of cash crops, forestry, animal husbandry and fishery production, to make the caloricity from food to 2715 kcal/day per capita, protein 73.5 g and fat 56.6 g meeting the basic demand of normal human bodies.

计划到2000年人均粮食产量达400~424公斤，总产量达到5000~5300亿公斤的基础上，其它经济作物和林牧渔各业全面发展，使城乡居民每人每天从食物供给中的热量达到2715千卡、蛋白质73.5克，脂肪56.6克，可以基本上满足人体的正常需要。

Betel nut, grow in wisdom, the sand 仁, the 巴戟 is four big and south medicines, the yield has 99.9% of the national yield,429,000 hectares of tropical farm crop total area, the pepper, coffee, cashew nut of 1997 among those years plants the area difference to have 77%,63% and 90%s in the whole country.

槟榔、益智、砂仁、巴戟是四大南药，产量占全国产量的99.9%，热带作物总面积42.9万公顷，其中1997年胡椒、咖啡、腰果的种植面积分别在全国占77％、63％和90％。

The research results indicated that the best base was KOH, the best acid was H3PO4 and their neutralizing products were the necessary nutrients for foliar fertilizer; 12.4 L of foliar fertilizer were obtained in per kg of shrimp offal, chitin was obtained in 13.8% yield, crude protein was obtained in 23.2% yield using this method; This multifuctional foliar fertilizer was an abundant nutritional multifunctional foliar fertilizer which contained 15 kinds of amino acids, shimp cephalin, astacein and many trace elements. The concentration of calcium was 38.9 mg/L, the concentration of magnesium was 55.4 mg/L, the concentration of potassium was 20.0 g/L, the concentration of nitrogen was 4.5 g/L and the concentration of phosphorus was

研究结果表明：(1)处理虾下脚料的最佳碱是KOH，最佳酸是H3PO4，其中和产物是叶面肥必需的营养素；(2)本工艺不仅每Kg虾下脚料可制备虾叶面肥12.4L，而且可回收13.8％甲壳素和23.2％粗蛋白质；(3)经分析测定虾叶面肥中，含钙(Ca2+)38.9 mg/L，含镁(Mg2+)55.4 mg/L，含钾20.0 g/L，含氮4.5 g/L，含磷 78.9 g/L，还含有15种氨基酸及虾脑磷脂、虾红素及多种微量元素等，是一种营养丰富的多功能叶面肥。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。