查询词典 yield rate

The results indicated, catalytic activity was very high, the average rate of O 2 uptake was 4.25×10 -2 mmol/min after 10 min, the yield of cyclopentanone was up to 83%.

实验结果表明，该催化体系对环戊烯的羰基化显示出较高的催化活性，反应 1 0 min，反应的平均吸氧速率为 4.2 5× 1 0 -2 mmol/min，环戊酮的收率可达 83%。

The orthogonal experimental result showed that the optimum reaction conditions were as follows: citric acid 7.7 g, isoamyl alcohol 21.7 mL(the molar ratio of citric acid to isoamyl alcohol, 1:5); 1.0 g (4% of the total weight of raw material) NaHSO4H2O as catalyst; 25 mL dimethyl benzene as deaquation reagent; microwave irradiation time 15 mm; the yield of product was 83.2%(the rate of esterification was 95.1%).

通过正交实验，得到最佳的工艺条件如下：柠檬酸7.7g，异戊醇21.7mL（酸醇摩尔比为1：5）；一水合硫酸氢钠作催化剂，用量为1.0 g（为原料总质量的4%）；带水剂为二甲苯，用量为25mL；微波辐射时间为15min。

Decolorization methods were studied. The best decolorization technology was: Using the LSD208 resin to decolorize, the decolorization rate, polysaccharide content and polysaccharide yield reached 88.19%, 92.32%, 64.16% respectively.

对树脂、活性炭、H2O2 3种脱色方法进行了比较研究，确定了最佳脱色工艺：采用LSD208树脂脱色，脱色率、多糖含量、多糖得率分别达88.19%、92.32%、64.16%。

Results indicated that rate of delignification is 84.12% and pulp yield is 38.12% under the pulping conditions.

结果表明，该蒸煮体系对稻草木质素的脱除率达到85 。1 2 %，纸浆得率

Diplodia natalensis Evans was separated from the surface of natural rotted citrus.The results of biological characteristics showed that there was significant difference in colony form,growth rate of hyphae and yield of conidia in different culture media,and the potato sucrose agar played the most important role.

从自然发病的柑橘果实表面分离出柑橘黑色蒂腐病菌，对其生物学特性研究的结果表明：不同培养基对菌落形态、菌丝生长速率及产孢量都有很大影响，其中以马铃薯蔗糖培养基菌丝生长旺盛，生长速度最快，产孢量最大。

Aims: To compare the diagnostic yield and accuracy rate of double-balloon push enteroscopy and enteroclysis in patients with suspected obscure small intestinal bleeding and their clinical practicability.

目的：通过对不明原因疑小肠出血患者分别行推进式双气囊小肠镜和小肠钡灌检查，比较两者对小肠出血的病变检出率、病因诊断准确率和临床实用价值。

The characteristics of non-azide compositions including high nitrogen compounds such as tetrazoles,guanidine,improved thermites,oxidants,binders and process assistants are discussed.Because of their advantages such as adjustable burning rate,nontoxicity and high gas yield,non-azide gas generant to replace azide gas generant will put into use widely.

对出现的四唑类、胍类、铝热剂类等非叠氮配方的高氮化合物燃料、氧化剂、黏合剂、工艺助剂等特点和发展做了总结和讨论，指出非叠氮高氮化合物有无毒、燃速范围宽、产气量大、燃温低等优点，正在取代叠氮配方燃气发生剂，得到广泛应用。

Genty B%Briantais J M%Baker N R The relationship between the quantum yield of non-photochemical quenching of chlorophyll fluorescence and the rate of photosystem Ⅱ photochemistry in leaves Biochimica and Biophysica Acta , 1989,null

关义新%戴俊英%林燕水分胁迫下植物叶片光合的气孔和非气孔限制植物生理学通讯， 1995，04

Results The optimal process conditions for supercritical CO2 extraction were: the pressure of 25 MPa, the temperature at 45℃ and CO2 flowing rate at 20 L/h, under these conditions the yield of volatile oil in Heracleum hemsleyanum Diels reached 0.65%.

结果超临界CO2萃取最佳工艺条件为：萃取压力25 MPa，萃取温度45℃，CO2流量20 L/h，在此条件下牛尾独活挥发油的收率为0.65%。

The rate of maize yield growth has being declining due to narrow genetic background and limited new heterotic patterns since 1970s.The role of tropical and subtropical maize germplasm in maize improvement was discussed in this paper.

但70年代以来我国玉米增产率呈下降趋势，玉米生产一直处于徘徊状态，其主要原因是国内种质资源匮乏，缺乏新的杂种优势群和杂种优势模式。

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。