查询词典 yield spread

Among the three types of parent material,the yield of rape( above-ground dry weight) was the best(NPK treatment was the best in purplish soil ), Quaternary red soil and in granitization red soil were followed respectively(both of the two types of parent material have weak growth vigor and have a consistent yield). 2.With plant rape,NPK treatment could get more harvest among the three types of parent material , M treatment and CK were followed restectively.

结果表明：1、三种母质以紫色土油菜产量为最高（紫色土以NPK处理为最高），四纪红土次之，花岗岩油菜产量为最低（二种母质油菜生长均不好，产量差不多）。2、三种母质种植油菜均以NPK处理为最高。

On the basis of the minimum scale soil nutrient distribution generated randomly based on the given values of mean, standard deviation and related distance, or obtained by geostatistics analysis based on soil sampling data, the amount of fertilization, yield and fertilization use efficiency at different scales were calculated by related fertilizer models and yield models supported by geographical information system and computer simulation, then the simulation result was intuitively visualized by curve graphics and RGB primitive colors synthesized image and thematic maps.

系统通过随机数生成法或地统计分析法生成最小尺度条件下的土壤养分空间分布数据，以此为基础，采用GIS、计算机模拟技术模拟不同尺度的养分空间分布，并以肥料效应模型和产量模型计算不同尺度条件下的施肥量、产量和肥料利用效率，最后通过曲线图、三原色合成影像和GIS专题图实现形象直观地表达模拟结果。

Field experiment was carried out to study the effects of KEON and PEON (organic N extracted with phosphate buffer) from 4 kinds of organic wastes on the growth and N use efficiency of green soybean. The results show that the application of PM could apparently improve the shoot dry weight, seed protein content and the yield by 20.4%, 17.8% and 38.0%, respectively, compared with regular chemical fertilizer applied. The application of OMM could significantly improve the shoot dry weight, seed protein content and the yield by 33.2%, 16.2% and 32.5%, respectively, compared with regular chemical fertilizer applied.

通过田间试验研究4种有机废弃物中的KEON和PEON2种形态的有机氮对菜用毛豆生长及化肥氮利用率的影响结果表明：施用鸡粪和豆粕混合肥与单施化肥相比，地上部分干物质重分别提高20.4%和33.2%，籽粒中的蛋白质含量分别提高17.8%和16.2%，达到显著差异水平；与单施化肥相比，毛豆产量分别提高38.0%和32.5%。

We know from the statistics of past years, the total world demand for apple is a relatively slow process of changes and the inter-annual changes are less, generally about 6 million t. If Chinese export volume maintains at around 900, 000 t in recent years, it only takes up 3.8% of domestic gross yield 24 million (2005). The number accounts for 15% of world total export volume. If 10% of domestic gross yield is exported, it will account for 40% of world total export. If it increases to 20%, it will account for 80% of world total export.

我们从历年的统计可以知道，世界对苹果需求总量是一个较缓慢变化的过程，年际间变化较小，大体维持在600万 t 左右，如果近几年中国出口量维持在90万 t 左右，也只占国内总产量2400万 t （2005年）的3.8%，这个数量已占世界总出口量15%，如果以国内总产量10%用于出口，则占世界总出口的40%，如果提高至20%，则占世界总出口量的80%。

Ha, the irrigated farmland rate to the total arable land increased 5. 3 times and the total number of drilled wells raised 19. 6 times. At the same time, multi-cropping index increased by 33％. The percentages of winter wheat and maize sown area went up and those of millet, potato sown area which consume less water in their lifetime went down in the past 50 years. The gross grain yield increased 1923. 3× 10〓ton and the yield of per hectare increased 5082kg during the past 50 years.

在种植业内部，小麦、玉米播种面积在粮食作物中的比例不断提高，而耐旱的谷子、高粱、薯类等杂粮作物播种面积不断减少，形成典型的小麦、玉米两熟种植制度。50年内本区粮食产量增加了1923.3×10〓t，粮食单产提高了5082kg/hm〓。

Then the ductility demand spectrum, which comprises a group of ductility coefficients or yield strength coefficient versus natural period curves for different yield strength coefficient or ductility coefficients are obtained.

在分析总结几种常见的非线性静力分析侧向力分布形式的基础上，提出两个基于多自由度体系振型的侧向力分布计算方法：30％方法和部分SRSS方法。

When using this method to isolate thrombin-like enzyme from crude venom of Agkistrodon halys pallas, the total protein yield and total activity yield of thrombin-like enzyme were about 0.3% and 64% respectively, and specific activity was more than 2000 U/mg.

从江浙粗蛇毒中提取类凝血酶时，类凝血酶的总质量收率约为0.3%，总活性收率约为64%，比活可达2000 U/mg。三步柱色谱；类凝血酶；蛇毒；江浙蝮蛇；分离纯化

Most populations tested had good adaptability in Heilongjiang province,and BSCAD-3 and BS12CH1C8 have good performance in grain yield and yield components and head smut resistance which could be used in breeding program.

农艺性状鉴定表明，大部分供试群体在黑龙江省具有较好的适应性，其中群体BSCAD-3和BS12CH1C8的产量、产量构成因子及对玉米丝黑穗病抗性等性状表现较好，在育种中可优先利用。

The main results of the investigation are as following:(1) Some important criteria for the design of multi-layer structure are acquired: the ratio of the layer thickness to the contact diameter should be controlled to a value about 0.8; increasing the number of the gradient layers and elasticity modulus of the top layer would benefit to the yield strength and the stress status at the interface.（2）By means of molecular dynamics simulations for a indentation and sliding process, it is discovered that dislocations of 45 direction to the surface occur in the surfaces layer, which is correspond to the direction of the plastic flows observed in the macroscopic continuous medium. The irreversible deformation caused by the dislocation and the atom piles at the surface are responsible for the irreversibility of the force response. They are also the main factors for the friction generation. The temperature and the indentation velocity have significant effects on the deformation behaviors of the material of the surface layer. The yield strength would increase obviously if the indentation velocity is greater than 10 m/s.（3）A method to evaluate the fracture toughness of coating by estimating the crack-density functionβof a Wicker''s indentation was proposed. Meanwhile a new surface treatment technology was developed using non-equilibrium plasma.（4）A MD-FE hybrid method and corresponding software was developed to analysis the tribological behaviors for multiplayer system.

研究主要内容和结果有：（1）得到指导梯度膜设计的几个准则：控制膜层厚度与接触半径比在0.8左右为宜；适当增加梯度层层数和顶层弹性模量，有利于提高抗屈服能力和改善界面处的应力状态；（2）通过对嵌入和滑动摩擦过程的分子动力学模拟，发现表层产生一个与宏观连续介质的塑性流动方向观测一致的45 方向位错；位错造成的不可逆变形和表面的原子堆积，是力的响应不可逆性的原因，也是构成摩擦力的主要因素；温度和嵌入速度对材料变形特性有显著的影响，当嵌入速度大于10 m/s时，屈服强度明显增加；（3）提出压痕裂纹密度系数β半定量判定膜层断裂韧性的方法；并开发出表面强化新工艺；（4）开发出分析表面摩擦学特性的MD-FE复合模拟方法和相应模拟软件。

We get the optimum process scheme which is suitable for the unit, through analysising and comparising different absorption schemes in the incipience of running of PSA. As to different operation conditions during pressure swing absorption actual operating, we propose to refer absorption cycle time, hydrogen yield and recovery rate as target of process characteristic, study and find out the interrelation between process parameters which influences each other and controls guideline; Through optimizing process conditions, we find out the best operation clicking in actual production, then confirm the best range of absorption cycle time, which make hydrogen yield of plant, hydrogen products purity and hydrogen recovery rate come up to the production requirement at the same time.

通过装置运行初期对不同吸附方案的分析、比较，选出适合本套装置的最优方案，针对变压吸附实际运行过程中的不同生产条件，提出了吸附时间、氢气产量和氢气回收率作为工艺条件研究的主要对象，找出相互影响的工艺参数和控制指标的相互关系；通过对工艺条件的优化，找出实际生产中最佳操作点，确定吸附时间的最佳范围，使装置氢气产量、氢产品纯度和氢气回收率同时满足生产要求，并对影响氢气回收率的其他因素进行了阐述，对优化操作提出建议。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。