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  main plots
     The experiment utilized the split-plot design with fertilizers as main plots and plant density as subplots,to study the characteristics of panicle and grain structure matched with a yield of more than 9t/ hm~2 for the new hybrid rice combination "Teyou 649".
     试验采用裂区设计,以肥料为主区,密度为副区,研究了杂交稻新组合特优649单产9t/hm2以上穗粒结构的特点。
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  “为主区”译为未确定词的双语例句
     In a split-plot design, cultivar(clonc)factor was assigned to the main plot and density factor to the subplot to investigate the influence or 7 4x-2x selections(A1-A7)and their 4x parent cv.NEA 303(A8),and 3 levels of density(B1 ̄B3)on yield and yield components.
     本试验采用裂区试验设计。 以品种(系)为主区因素、密度为副区因素,研究7个4X—2X选系(A1~A7)及其4X亲本东衣303(A8)以及密度(B1~B3)对产量和产量性状的影响。
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     The area in which theCFUW is 1-3mg/L belong to the draiing region of underground water, and the area inwhich the CFUW is over>3mg/L belong to the main region of the evaporation andconsumption.
     1-3mg/L区,位于排泄、这流区; >3mg/L区,是地下水以蒸发消耗为主区
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     This test used split-plot design to study the effect of GA3 and MeJA on endogenous hormones and development of potato in aeroponics,with main plot being varieties and split-plot being hormones.
     试验以品种为主区,激素处理为副区进行裂区设计,研究了赤霉素(GA3)与茉莉酸甲酯(MeJA)对雾培马铃薯内源激素与生长发育的影响。
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     Research results showed that the group output was not outstanding a-mong 4 varieties from 16-28 plants/m2, It was different that the so-called optimum for all varieties.
     采用裂区试验设计,以长春地区4个主推大豆品种(长农5号,长农4号,吉林29号,吉农4号)为主区,设7个播种密度(16,18,20,22,24,26,28万株/hm2)为副区,分析了各品种不同密度条件下群体产量差异性。
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     It was found that with the increase of radiation dose,the radiation effect on BAM/PVA system can be divided into three stages: (1) in the lowerdose range, the gel fraction increases with increase of radiation dose and the enhanced radia-tion crosslinking is dominant;
     BAM/PVA体系的辐射效应可大致依辐照剂量的增加划分为三个阶段:强化辐射交联为主区,强化辐射交联与辐射裂解相抵区和辐射裂解优势区。
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  相似匹配句对
     The final fracture area is mainly DR.
     在终断以DR为主
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     Sicken udder number only one.
     但患病乳以一个为主
     The line density and area density have been counted.
     的密度。
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     proliferatum was the predominant species.
     proliferatum为主
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     necking down region;
     颈缩 ;
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  main plots
Main plots consisted of four transplanting dates viz.
      
Three fertilizer N rates (0, 50 or 100?kg urea-N ha-1 in WS) were assigned to subplots within the cropping system main plots.
      
A field experiment was carried out in a split-plot design with four levels of N as main plots and three strains and an uninoculated control as subplots.
      
In the second year, the main plots were split into three sub-plots and treatments consisted of an uninoculated control, CPAC?7 and CPAC?15.
      
radiata], weeds, and a weed-free fallow were subplots in dry-season main plots of weedy, weed-free, and frequently tilled fallows.
      
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Ten wheat cultivars of the Lower Yangtse Region were planted in a 3-replicated,randomized block layout at 7 sites in two crop seasons of 1984~1986,and nine wheatcultivars grown of the same region were planted in a 3-replicated,Split-split Plot designlayout at Nanjing in two crop seasons of 1986~1988.Grain yield and yield compo-nents were evaluated for each plot.Significant differences between these wheat cultivars in yielding ability,adaptabilityand stability were found.Some cultivars were found to be high-yielding,stable...

Ten wheat cultivars of the Lower Yangtse Region were planted in a 3-replicated,randomized block layout at 7 sites in two crop seasons of 1984~1986,and nine wheatcultivars grown of the same region were planted in a 3-replicated,Split-split Plot designlayout at Nanjing in two crop seasons of 1986~1988.Grain yield and yield compo-nents were evaluated for each plot.Significant differences between these wheat cultivars in yielding ability,adaptabilityand stability were found.Some cultivars were found to be high-yielding,stable andwidely adapted.Yangmai 5(Yangzhou wheat No.5) was more adaptable than theothers.Results from these studies suggest that further yield advances could be attained bycombining number of ears per unit area and higher grain weight associated with highergrain-filling rate or by combining number of ears per unit area and greater number ofgrains per spikc associated with stable kernel weight,and shorter straw associated withthe optimum mature period in breeding programmes.

10个长江下游地区的小麦品种在1984~1986年两个小麦生长季、7个有代表性的试验点进行3重复随机区组试验;1986~1988年两个小麦生长季,9个同一地区的小麦品种在南京进行3重复的复裂区试验,3种施氮水平为主区,3个播种期为副区,9个品种为亚副区。测定各小区的籽粒产量和产量因素。这些参试小麦品种中,在产量能力、适应性和稳定性上存在显著差异。有些品种产量能力较高、稳定性较好,而且有广泛适应性,其中,扬麦5号的适应性更好于其他品种。结果说明,进一步的产量育种目标可以是在一定亩穗数的基础上提高粒重,结合较快的灌浆速度,也可以是在一定亩穗数的基础上增加每穗粒数并结合稳定的粒重,降低株高并结合适当的成熟期。

A rod weeder experiment was conducted in a laboratory soil for the purpose of improving the implement's penetration and reducing its draft. A split -plot experimental design was used with differing soil types in the main plots and differing rod shapes, travel speeds, rod speeds and tillage depths in the sub -plot. The data were collected by a computer based stationary six-cell dynamometer data acquisition system to measure the forces on the rod. Among the four types of rod tested, round, square, triangle and...

A rod weeder experiment was conducted in a laboratory soil for the purpose of improving the implement's penetration and reducing its draft. A split -plot experimental design was used with differing soil types in the main plots and differing rod shapes, travel speeds, rod speeds and tillage depths in the sub -plot. The data were collected by a computer based stationary six-cell dynamometer data acquisition system to measure the forces on the rod. Among the four types of rod tested, round, square, triangle and fluted rods, the fluted rod had the least draft and vertical reaction because its fluted shape and relatively smaller effective diameter lowered the plane of separation below which soil must be compacted and, in turn, reduced the compaction and used less energy.

为了改进杆式除草器的入土性能并减少其牵引阻力,在实验室土槽内对四种不同形状的除草器的土壤反作用力进行了测试。本试验采用了裂区实验设计;土壤类型为主区,除草器的形状,转速、前进速度及耕深在小区内。实验数据是由一个计算机化六分力式数据采集系统采集的。在测试的四种形状中,十字形截面的除草器所受到的牵引阻力和垂直支反力最小,具有良好的入土性能,优于圆形、方形和三角形截面的除草器。

Polyvinyl alcohol (PVA) became crosslinkable under gammairradiation in the presence ofN, N' -methyl-bis-acrylamide (BAM). It was found that with the increase of radiation dose,the radiation effect on BAM/PVA system can be divided into three stages: (1) in the lowerdose range, the gel fraction increases with increase of radiation dose and the enhanced radia-tion crosslinking is dominant; (2) the gel fractions of the system are almost independentof the radiation dose and the radiation degradation process counteracts...

Polyvinyl alcohol (PVA) became crosslinkable under gammairradiation in the presence ofN, N' -methyl-bis-acrylamide (BAM). It was found that with the increase of radiation dose,the radiation effect on BAM/PVA system can be divided into three stages: (1) in the lowerdose range, the gel fraction increases with increase of radiation dose and the enhanced radia-tion crosslinking is dominant; (2) the gel fractions of the system are almost independentof the radiation dose and the radiation degradation process counteracts the enhanced radiationcrosslinking and (3) in the higher dose range, the gel fraction of irradiated system decreaseswith radiation dose and the radiation degradation of the system becomes leading proces. Therelationship beteewn sol fraction S and radiation dose D for irradiated BAM/PVA systemin the first stage can be expressed by S=[(1+1/(1-K)D_g~(2-K)]-D_g/(1-K)D~(1-K)=A-BD~(1-K)where D_g is the gelation dose, K, a constant correlated with BAM/PVA ratio.

通常γ-辐照裂解的聚乙烯醇(PVA)在N·N’-甲基丙烯酰胺(BAM)存在下可以辐射交联。BAM/PVA体系的辐射效应可大致依辐照剂量的增加划分为三个阶段:强化辐射交联为主区,强化辐射交联与辐射裂解相抵区和辐射裂解优势区。强化辐射交联区的溶胶分数S与辐照剂量D的关系可表示为: S=(1+(1/(1-K))D_g~(2=K))-(D_g/(1-K))D~(1-K) =A-BR~(1-K)式中,D_g为凝胶化剂量;K是与BAM含量相关的常数。

 
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