级进杂交,Upgrading
1)Upgrading[英]['?pgreid][美]['?p'gred]级进杂交
1.Change of Fleece Characters with Upgrading Generations of Angora Goat;安哥拉山羊级进杂交后代被毛性状变化
2.A study on suitable generation of upgrading indigenous cattle by simmental;西门塔尔牛级进杂交本地黄牛适宜代数的研究
3.Fibre Types and Fineness of Crossbred Angora Goats along with Upgrading;安哥拉山羊级进杂交后代被毛纤维类型及细度分析
英文短句/例句

1.Preliminary Observation on Viability of Angora Goat Crosses with Upgrading安哥拉山羊级进杂交后代生活力初步观察
2.Change of Fleece Characters with Upgrading Generations of Angora Goat安哥拉山羊级进杂交后代被毛性状变化
3.Growth Analysis of Crossbred Filial-generation Two of Boer×Xuhuai White Goats;波尔山羊级进杂交二代羔羊的生长分析
4.Microsatellite Marker Research on the Growth and Development Traits in Boer and Its Grading Hybridization布尔山羊及其级进杂交后代生长发育性状的微卫星标记研究
5.Studies on Upgrading Efficiency of Angora Goats to Local Goats in North Shaanxi安哥拉山羊与陕北本地山羊级进杂交效果的研究
6.Fibre Types and Fineness of Crossbred Angora Goats along with Upgrading安哥拉山羊级进杂交后代被毛纤维类型及细度分析
7.The Identification and Assessment on Genetic Characteristics in Grading Breeding Sheep Populations with Microsatellite Markers利用微卫星标记对级进杂交绵羊群体遗传特性的鉴定分析
8.Prospects and advancement in super hybrid rice breeding in China我国超级杂交稻育种研究进展及展望
9.Research Progresses of Early Super Hybrid Rice in the Double-cropping System in the Middle Reaches of the Yangtze River Valley长江中游双季超级杂交早稻研究进展
10.The Demonstration and Developing Strategy of ″Planting Three to Produce Four ″ High-yielding Project on Super Hybrid Rice超级杂交稻“种三产四”丰产工程示范进展及发展对策
11.Improvements of 8-node Biquadratic Q8-element by Hybrid/Combined Hybrid FEMS;杂交/组合杂交方法对Q8-元改进
12.The characteristics and high-yield cultivation technology of super hybrid rice Yueza 889超级杂交稻粤杂889的特性及高产栽培技术
13.Now Professor Yuan is working on developing super hybrid rice.现在袁教授正研制超级杂交水稻。
14.Studies on the Dynamic Plant-type of the Supper Hybrid Rice Y Liangyou 1;超级杂交稻Y两优1号动态株型研究
15.Demonstration and Spread of Super Rice in XinYang;超级杂交水稻在信阳的示范推广研究
16.A Study on Nitrogen Management for the Late Stage of Super Hybrid Rice;超级杂交稻生育后期的氮肥运筹研究
17.Studies on Yield Stability of Super Hybrid Rice Combinations in the Yangtze River Valley长江流域超级杂交稻产量稳定性研究
18.Strategy of Sampling for Pre-Core Collection of Sugarcane Hybrid甘蔗杂交品种初级核心种质取样策略
相关短句/例句

grading crossing级进杂交
1.Relationship between microsatellite marker heterozygosity and growth capability in grading crossing sheep;级进杂交绵羊微卫星基因杂合度与生长性能的关系
2.Genetic structure of grading crossing groups in two meat sheep breads by microsatellite marker technology;利用微卫星技术分析两个肉用绵羊品种级进杂交群体的遗传结构
3)grading['ɡreidi?]级进杂交
1.Xinjifine woolsheepassireline, gradingwith Slav fine woolsheepasdam line, theperformanceresultsby sam- pling from each generation indicate that the fineness, wool yield, staple length and weight of ewes have improved generation by generation.以新吉细毛羊作父本、斯达夫洛普细毛羊作母本进行级进杂交,抽样测定级进各代羊生产性能结果表明,级进各代母羊细度逐代变细、净毛量逐代上升、毛长逐代增长、体重逐代下降,其中:成年母羊级进3代和育成母羊级进1代净毛量提高显著(p<0。
2.The growth models during 0 to 7 months were investigated using Logisitic and Compertz model for Boer goat, the first,second and third gradingup generation of Tangshan milk goat with Boer goat, The results showed that fitness ( R 2) of the two models was above 0.采用常用的Logisitic模型和Compertz模型分别拟合了纯种波尔山羊以及波尔山羊与当地的唐山奶山羊杂交一代、级进杂交二代 (波尔山羊与杂交一代母羊回交 )、级进杂交三代山羊初生至 7月龄的生长发育规律 ,结果表明两种模型的拟合度 (R2 )均达到 0 。
4)grading breeding级进杂交育种
5)upgraded offspring级进杂交后代
6)improvement and crossing breeding改进杂交
延伸阅读

级进模优化设计软件--Topsolid Progress北京宇航计算机软件有限公司(北京 100083) 由于目前大多数级进模设计是建立在二维平面设计的基础上,因此,只能设计简单钣金零件的级进模(例如电机的矽钢片级进模等),很难与其他生产环节相关联,实现数据模型无缝共亨。法国Missler公司在TopSolid的基础上,推出完全集成的TopSolid/Progress级进摸设计模块,该模块遵循级进模设计规范,实现了产品数据模型的共享,使得级进模设计过程更加形象直观、方便高效。下面就针对TopSolid/Progress,级进模设计模块作简单介绍。 TopSolid是世界上屈指可数的级进棋设计与CAD/CAM完全集成的系统之一。它的级进模设计模块Topsolid/Progress包含了于艺设计和模具设计两大部分。1 工艺设计 从钣金件的调用与识别,到设计每个工位的成形工艺,形成凹凸模,到最后设计模架以从绘出二维工程图纸,工艺设计见决定模具成败的重要环节。1.1 工位定义 级进模设计首先进行的是零件的排样(图1),在Topsolid/Progress中可以按设计需求对各种零件进行排样。然后是产品成形工艺设计,设汁者可以任意指定、调节工位数量和工位中心位置,系统根据零件自动提示最大只小步距范围。如果发现工位数量过多或者过少,在以后的操作中可以随时添加或删除。定义好工位及位置后系统自动根据零件和工位外形轮廓产生带料实体模型和两个线框轮廓,方便后面定义冲裁轮廓形状。排样设计如图1所示。1.2 具体工艺设计 产品成形工艺的好坏将直接影响产品的质量,Topsolid/Porgress可以自定义轮廓外形,也可以根据系统自动产牛的线框轱廓创建与零件完全吻合的外形来进行冲裁下艺设计(图2),并且整个设计过程完全参数化相关联。 对于产品拉伸成形和弯曲成形部分,止接根据钣全零件外形自动产生。拉伸成形中,系统自动调用钣金零件设计用到的标准拉仲形状进行一次成形。下—版本系统将支持对单个拉伸成形的分步拉伸工艺设计。弯曲成形中,系统自动过滤弯曲曲面,方便选择,并且支持分步弯曲,有效地防止了零件由于材料因素所产生的回弹, 整个工艺过程的每一步操作都可以自由调节、修改。所有的成形工艺设汁完成后,使用系统的分析功能分析各个工位的受力情况及单工位合力点和整体合力点位置(图3)。通过受力分析调节各工位的工艺操作,达到尽可能让受力中心在模架中心位置。