查询词典 yield spread

The yield increased as the ecapotranspiration,while it comes to a certain,the yield won't increase,it may decline. 2According to the non-full irrigation experimental datum of spring wheat and flax in Liangzhou and Gulang city of Shiyang River Basin,calculating the crop water deficiency sensitive index or coefficient by using crop water production function models of Jensen,Blank,Stewart and Minhas.

产量随着耗水量的增加而增加，当达到一定数值将不再增加，反而有下降的趋势。2 依据石羊河流域凉州和古浪春小麦和亚麻非充分灌溉试验资料，利用现有的Jensen 、Blank、Stewart 和Minhas 水分生产函数模型求解作物的缺水敏感指数。

The results indicated that, among the ten characters studied, defoliation influenced most significantly on protein yield, grain yield and grain weight per head and little on grain protein content.

结果表明，在所研究的十个性状中，去掉旗叶对单株蛋白产量、籽粒产量、单穗重的影响最大，而对蛋白含量影响甚微。

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。

The affections on the yield of DLLA caused by catalyst, temperature and time etc. were studied. By using ethylene glycol as diluent, the distillate temperature of DLLA was lowed and the carbonization phenomenon could be avoided, which caused the yield of DLLA increasing from 36.8% to 51.3%. The molecular weight of PDLLA prepared by this method could reach 184,000. DLLA and PDLLA was characterized and analyzed by DSC, XRD and IR.The key of direct method to synthesize PDLLA is the exclusion of H2O from reaction system.

丙交酯开环聚合制备PDLLA的关键在于中间体D，L-丙交酯的制备，研究了催化剂、反应温度、反应时间等因素对DLLA产率的影响，通过在反应体系中加入稀释剂乙二醇，DLLA的馏出温度明显降低，避免了DLLA在蒸馏过程中产生碳化现象，并使DLLA的平均产率由36.8％提高至51.3％，制备的PDLLA分子量最大值达18.4万。

Of experimental materials, the yield of Nongza-62F1 was the highest, along with higher competitive dominancy. In contrast, the yield of H16 was the lowest, along with lower competitive dominancy.

在试验材料中，农杂62的产量最高，F1竞争优势大，而其F2，F3衰退率也最大；H16的产量最低，F1竞争优势最小，而其F2，F3衰退率也最小。

However, only 4 of the loci involved had single-locus effects, indicating the complexity of epistasis and their important contributions to yield and yield component traits.

共检测到17对QTL加性和环境互作，以及14对上位性QTL与环境的互作，表明环境因素对产量和产量构成因子性状起重要影响作用。

A better understanding of the role of PPAR in insulin action system will be critical in developing more efficacious and safe agent s that act on PPAR and benefit patients with type 2 diabetes. The main content is followed: Synthesis and analysis of 1,3-dicarbonyl compounds. Make use of easily available cheap reagent such as 2-naphthol, 6-hydroxyquinoline, 1,2-dibromoethane, 4- hydroxybenzaldehyde, dimethyl malonate, 2-{4- [(2-napthoxy)ethoxyl] benzyl} malonates and 2-{4 [(1,2,3,4-tetrahydro-6 -quinolinoxy)ethoxyl] benzyl } malonates were synthesized through 6-8 steps in virtue of Williamson, Knoevenagel reaction, Pd/C catalyzed hydrogenation with mild conditions and high yield. The total yield of 40-50%.

本论文的主要内容和研究结果如下： 1，3-二羰基类化合物的合成及分析，采用2-萘酚、6-羟基喹啉、1 ，2二溴乙烷、对羟基苯甲醛、丙二酸二甲酯等常见易得试剂，利用Williamson反应、Knoevenagel反应、钯碳加氢等条件温和且收率高的方法，分别合成了2-{4- [(2-萘氧)乙氧基]苄基}丙二酸衍生物和2-{4 [(1，2，3，4-四氢-6-喹啉氧基)乙氧基]苄基}丙二酸衍生物两个系列8个化合物，经6-8步反应，总收率为40-50%，具有一定绿色化学特性。

The low yield in seed production is an important limiting factor for the development of japonica hybrid rice, and the stigma exsertion rate of male sterile lines has a key effect on seed yield of japonica hybrid rice.

制种产量低是制约杂交粳稻发展的重要因素，而不育系柱头外露率是影响杂交粳稻制种产量的关键。

But it can yield robust, extendible architectures; this is the kind of structure that object-oriented techniques, properly applied, will tend to yield.

但是它能产生健壮的，易扩充的架构；这种结构，适当地加工就可以产生面向对象技术的结构类型。

The maximum yield of FAMEs was 93% after 12h and after 14 cycles the yield of FAMEs was still above 70%.

在此条件下固定化酶连续使用14批，产率仍然可保持在70%以上。

Must have Coordination and negotiation skill, flexible ideas, and be punctilious person.

必须具备较好的协调与谈判能力，头脑灵活，工作认真仔细

Result: 18 patients are all with simple eye.The pigment mole lies in nasal and temple sides of the ball conjunctiva,in which 2 lie in lacrimal caruncle and semilunar plica.

结果：18例患者均为单眼，色素痣大多数位于内外侧睑裂部球结膜面，2例位于泪阜及半月皱襞，经激光治疗后，10例色素痣消失，有5例行再次激光后消失，2例行第三次激光后消失，1例第四次激光后消失。