查询词典 yield rate

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%。

The measured results show that the shape of the yield curves changes with increasing illumination time due to the faster quantum-yield degradation rate of low energy photons.

基于修正后的反射式阴极量子效率公式对这种变化进行了理论分析，发现与光电子的谷间散射和阴极衰减过程中表面势垒形状的变化有关。

Evaluation each period of green food business enterprise piece, habitat monitor area, real object total amount and sale sum Be importation index sign; Again selection each year green food export sum is output index sign, to 1999-2006 year China green food development level of time sequence data calculation result enunciation: Green the food export's ability exaltation trend, which is a DEA for 2004-2006 years valid of age, but further analysis after detection: Green food yield 2002-2006 year average growth 29.2%, but export rate didn't°yet break 13%, and every year export rate growth not arrive a percentage point, and the demand of international market at continuously extension, particularly west nation green food consume growth the rate is in above 20%, this has already result in produce and foreign trade mutually separate, can't orientation open of market economy of request, this elucidation our country green food export development medium of strategy existence very great problem, For further expanding the international market, the analysis of market-orientation should be strengthened, the product quality and enterprise credit should be improved and the proper strategy and way to access market should be taken in order to break through the green barrier and keep up the competition ability which can be continuously developed.

评价将各期的绿色食品企业个数，产地监测面积，实物总量和销售额作为输入指标；再选取各年绿色食品出口额为输出指标，对1999——2006年中国绿色食品发展水平的时间序列数据计算结果表明：绿色食品出口能力呈现逐年提高趋势，2004——2006年是DEA有效的年份，但进一步分析之后发现：绿色食品产量2002—2006年平均增长29.2%，而出口率还没有突破13%，而且每年出口率增长不到1个百分点，且国际市场的需求量在不断扩大，尤其西方国家绿色食品消费增长率在20%以上，这已造成生产与对外贸易相分离，不能适应开放的市场经济的要求，这说明我国绿色食品出口发展中的战略存在很大问题，需要进一步开拓国际市场，加强市场定位分析，提高产品质量和企业信誉，并选择适宜的进入战略及方式，以利于冲破绿色壁垒和保持持续发展的竞争能力。

Under 100% of natural light, Pinus massoniana had highest values of maximum photosynthetic rate, light saturation point, light compensation point, dark respiration rate, the apparent quantum yield, leaf total electron flow rate and photochemical fluorescence quenching, whereas Cryptocarya concinna exhibited maximum fractions of total electron flow partitioned to photorespiration.

结果表明，在100％光下，马尾松有最高的最大光合速率、光饱和点、光补偿点、暗呼吸、表观量子效率和总电子传递速率，光化学猝灭也最大。

After the oxidative polymerization of DMP,styrene was in-situ polymerized under the initiation of dibenzoyl peroxide and dicumyl peroxide,finally thermodynamically compatible PPO/PS alloy was prepared.When styrene content was 50 wt%,for the synthesized PPO/PS alloy the yield and the weight-average molecular weight were determined to be 95%and 1.7×10~5 for PPO,93%and 2.0×10~5 for PS,respectively.The influence of the concentration of DMP and catalyst,molar ratio of N/Cu, oxygen partial pressure,NaOH concentration and temperature on the initial polymerization rate(R_0) of DMP was studied.It was found that the initial polymerization rate of DMP increased with the concentration of DMP and catalyst. The initial polymerization rate increased with the molar ratio of N/Cu at first and then decreased.

通过测定DMP氧化聚合过程中氧气吸收量随时间的变化，研究了DMP和催化剂浓度、N/Cu摩尔比、氧气分压、氢氧化钠浓度及温度对水介质中DMP氧化聚合初始速率的影响，发现DMP氧化聚合初始速率与氧气分压的0.1次方成正比；DMP氧化聚合初始速率随DMP和催化剂浓度及温度的增加而增加；随氢氧化钠浓度和N/Cu摩尔比的增加DMP氧化聚合初始速率先增加后降低。

This paper studies Pingan"scase from two aspects of the investment channels and yield levels. Through thecontrast of Pingan"s return rate with the average rate of insurance industry, this paperproves that the high return rate relates to the operation in capital market.

随着保险资金运用渠道及比例的不断放开，保险资金运用于资本市场可选择的投资工具包括股票、债券与基金，资金运用方式包括直接入市和间接入市，两者在保险资金运用的&安全性&、&收益性&与&流动性&方面呈现出不同的特点。

The results showed that, in the period from anthesis to dough stage, photosynthetic rate and photosynthesis yield and relative electron transport rate of flag leaves, light transmission rate of population were improved by low seeding density cultivation, change trend of them among different wheat varieties were the same.

结果表明，在从扬花到蜡熟期，稀植栽培可使小麦旗叶光合速率、光合量子产量、相对电子传递速率和群体透光率提高，各品种之间变化较为一致。

The field experiments were conducted to study on the effect of different N, P2O5, K2O fertilization rate and ratio on nutrient status and tuber yield of potato in three potato production bases. According to traditional application rate, N-P2O5-K2O =300-345-375 (kg/hm2), the fertilization rate of N, P2O5, K2O was decreased to 180, 180, 225 kg/hm2, respectively.

试验分别在甘肃省景泰县、内蒙古自治区达拉特旗和河北省沽源县3个马铃薯生产基地进行，在基地常规N、P2O5、K2O肥施用量分别为300、345、375kg/hm2的基础上，研究改变磷、钾、氮肥用量对马铃薯营养状况、块茎产量以及土壤养分的影响。

The low rate (150 Mg kg/hm~2), the middle rate (300 Mg kg/hm~2) and the high rate (450 Mg kg/hm~2) were experimented to study the yield and qualities formation and growth of flue-cured tobacco under different magnesium fertilizer application.

2005年在湖南常宁市大田栽培条件下，以云烟87为供试验烤烟材料，采用漂浮育苗移栽，进行3次重复的随机区组试验，研究了在低镁水平(150kg/hm~2)、中镁水平(300kg/hm~2)和高镁水平(150kg/hm~2)三种不同施镁水平下，烤烟的生长发育、烤烟光合强度、蒸腾强度、烟株Mg~(2+)及干物质积累动态、产量、烟叶品质、经济性状和经济效益等烤烟生长发育的生理化学指标。

Determination of photosynthetic pigments used 80% of acetone extraction method directly and the photosynthetic characteristics of using Li-6400 portable photosynthesis detector. Results showed that Returning the right amount maize straw stem into field was able to significantly restraint this year winter wheat flag leaf Chla degradation, to raise the flag leaf Chla/Chlb in the watery metaphase and late stage, to effectively restraint the photosynthesis rate decrease in the watery stage, to increase the pertinence of photosynthesis rate and pigment compared to others. However returning more maize straw stem into field was able to accelerate the retrogradation of chlorophyll and photosynthesis rate decrease then the yield declined.

结果表明：适量的玉米秸秆还田(9 000 kg/hm^2)可显著抑制接茬冬小麦灌浆中后期旗叶Chla降解，提高小麦灌浆中后期旗叶Chla/Chlb的比值，有效抑制灌浆期旗叶光合速率的下降，与其他处理相比，其光合速率与叶绿素的相关性得到加强；过量的秸秆还田(15 000 kg/hm^2)，加速了光合色素的降解，使得光合速率下降，产量降低；在各处理中，处理Ⅱ(9 000 kg/hm^2)产量最高。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。