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多叶片
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  multi-blade
     Optimized Aerodynamic Design of Multi-blade Rows of an Axial Compressor
     轴流压气机多叶片排的气动优化设计
短句来源
  number of blades
     At the meridional stream surface the concept of an infinite number of blades is assumed and the axisymmetricl flow problem solved.
     子午面采用无限多叶片概念,从而可在该面解轴对称问题。
短句来源
     An improved receptance method for the calculation of the coupled vibration is presented. It can be used to analysis the coupled vibration with any number of blades.
     为了深入研究叶片 -轴耦合系统动力特性 ,提出了改进阻抗匹配方法 ,这种方法可以分析具有任意多叶片数目的叶片 -轴耦合系统动力特性。
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  “多叶片”译为未确定词的双语例句
     The result showed that when the concentration was under 300 mg/kg, zinc application was favorable to the growth of rice. Rice plant height increased by 2.4 - 6.9 cm, the number of leaves and tillers increased by 1.7 - 9.7 and 17.6 -48.3 respectively, and the mature period was 5 days in advance.
     试 验结果表明,与对照相比施锌水平在300 mg/kg以下时,水稻株高增加2.4-6.9 cm,单株分蘖数增加1.7-9.7 个,叶片数增加17.6-48.3片,最多叶片数出现的时间提前约5 d;
短句来源
     When the rate was above 500 mg/kg, plant height decreased by 11.2-13.4 cm, with leave number 17.6 - 48.3 and the number of tillers 4 -6 inhibited. The appearance period of the most leaved and the differentiation of rice spike were delayed for 10 days and 5 days, respectively. Rice yield decreased by 4.91 % - 43.40% in high concentrations.
     施锌水平大于500 mg/kg时,水稻株高降低 11.2-13.4 cm,分蘖数减少4-6个,叶片数减少17.6-48.3片,最多叶片数出现的时间晚约10 d,产量降低 4.91%-43.40%,而且穗分化推迟,使水稻的生育期延长约5 d。
短句来源
     By analyzing interior flow rules, the relative motion momentum equation and infinite vane theoretical head equation are established.
     通过分析离心泵叶轮内部的流动规律,推导出了理想流体相对运动的动量方程和无限多叶片假设下的用出口角表达的理论扬程公式。
短句来源
     AIR-FLOW NOISE CHARACTER AND CONTROL FOR CENTRIFUGAL FAN
     多叶片离心通风机气动噪声特性及其控制
短句来源
     Further phenotype analysis of dos1-1 has exhibited several distinctive phenotypes, including smaller, altered leaf shape, and more erect rosettes.
     表型分析发现 dos1-1 植株在形态上与 WT 有明显区别:株型小,莲座多,叶片扭曲,花期提前,叶绿素含量高等。
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  相似匹配句对
     An Analy sis of Approaches for Multiple Blade Row Interfaces
     叶片间交界面处理方法分析
短句来源
     2) leaves host most species of scale insects;
     寄生在叶片上蚧虫种类最;
短句来源
     TRACKING OF MULTIPLE TARGETS
     目标跟踪
短句来源
     Multiple target Tracking
     目标跟踪
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     leaf>leafstalk.
     叶片>叶柄。
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  multi-blade
The sawing of granite blocks using multi-blade gangsaws and an abrasive mixture is one of the most complex operations in the rock transformation industry.
      
It consists of a multi-blade rotor supported by radial ball bearings.
      
Propeller meters use a multi-blade propeller positioned inside the pipe.
      
  number of blades
The problem of the design of rotor blades within the framework of the hypothesis of an infinitely large number of blades reduces to the solution of an inverse axisymmetric problem.
      
The highly loaded turbine blades are able to reduce both the number of blades and the stages of turbojet-engines.
      
In this paper, mainly the effects of number of blades and tip speed ratio are discussed.
      
There was no evidence that the number of blades or the blade passage adversely influenced the aperiodicity of the rotor tip vortices.
      
Effect of the number of blades on propeller wake evolution
      
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The percentage of body water of the armyworm, Leucania separata Walker, wasfound to fluctuate during its larval development in a regular pattern and to be influencedby the water content of its diet. The body of a newly hatched larva had a water con-tent of about 83.07% and a lipid content of 8.47% (of the dry weight); in the secondinstar its body water content increased to 89% but the lipid content dropped to 2.4%.In the following several instars the water content remained at higher values, which fluc-tuated...

The percentage of body water of the armyworm, Leucania separata Walker, wasfound to fluctuate during its larval development in a regular pattern and to be influencedby the water content of its diet. The body of a newly hatched larva had a water con-tent of about 83.07% and a lipid content of 8.47% (of the dry weight); in the secondinstar its body water content increased to 89% but the lipid content dropped to 2.4%.In the following several instars the water content remained at higher values, which fluc-tuated regularly in the different stages within each instar, being lowest after moulting,increasing during feeding and declining again when it ceased to feed and became readyto moult. The lipid content increased during the larval development until the insectreached the prepupal stage when it dropped. Under laboratory condition, the larva in its life span was found to consume a totalweight of 3 grams of fresh corn leaves (dry weight 0.6 grams). The percentage ofdietary water retention was found to be very high in the first and second instars, about98.9% of the water present in the food, and low in the last instar, the correspondingfigure being 13.67%. This may indicate that there is a sharp difference in the waterrequirement of this insect in the earlier and later stages of its larval development. Corn leaves were used in the study of the influence of dietary water content on thepercentages of food and water utilization, and advantages were taken to compare thereactions of the larvae to the left and right halves of a leaf which were very similar inchemical composition but with their water contents artificially altered by putting themin atmospheres of different relative humidities for a same length of time. Determinationsshowed that when the water contents of the leaf fragments were different, there was nosignificant difference in the percentages of food utilization, but the amounts of food con-sumed were markedly different: the larvae used to consume the leaf with higher watercontent to a significantly greater amount in fresh weight and thus gained a relativelyhigher body weight. Here the water in the leaves was seen to act as a phagostimulant.The adverse effect of leaves with lower water contents on larval growth seemed to bedue to the shortage of this phagostimulant. The larvae feeding on succulent leaves hadhigher water content in their bodies. The evidence of the present work proved that the consumption of a larger amount of food led to the greater accumulation of water derivedfrom the diet rather than the absorption of a larger amount of water from a unit weightof the diet. Thus the relation between the water content of the food plant and theamounts of nutrients absorbed in this insect may be analogous to that in the aphid,where the turgor of the food plant caused by the increase in water content enhancesfood ingestion, but the concentrations of the ingested nutrients decreased (Kennedy,et al., 1959). Dry air was unfavourable for larval growth, especially in younger instars. Gene-rally speaking, as development proceeds, the larva possesses gradually a greater capacityin the regulation of the water content of its body by effective prevention of water eva-poration and production of metabolic water.

粘虫在幼虫的不同发育阶段中,身体的含水量常有明显的变动。这种变化显然可受食物含水量的影响。初孵化幼虫的含水量约在83%左右,到2龄盛食期增高到约为89%,以后变动于90%上下,到末龄成熟时剧烈下降,在化蛹前到达73%左右。在每一龄期中,刚蜕皮而尚未取食时含水量最低,盛食期最高,在蜕皮前又行下降。在试验室条件下以玉米叶饲养的粘虫全幼虫期取食叶片共约3克左右,合干重0.6克;对食物的利用率以鲜重计算为20%左右,以干重计算为24%左右。但不同龄期的食物利用率不同:幼龄的比老龄的高。与此类似的,是不同龄期幼虫对食物中水分的吸收率不同:在一、二龄幼虫中,所吸收的水分占食物鲜重74.9%,相当于食物所含水分的98.9%:而在最后两龄幼虫中,相应数值分别为10.7%和13.6%。故食物中水分对于幼虫的营养作用在幼龄时似乎更为重要。当以其它成分大致相等而含水量不同的玉米叶饲养幼虫时,含水量即使相差不远,也可明显地影响幼虫的生长;此效应在幼龄幼虫中更为显著。随食物所吃下水分的多寡略能影响幼虫对水分的吸收,但差异不显著;此因素虽可影响虫体的含水量,但并不影响幼虫对食物的利用率。食物含水量对幼虫生长的影响,主要是因取食量不同而产...

粘虫在幼虫的不同发育阶段中,身体的含水量常有明显的变动。这种变化显然可受食物含水量的影响。初孵化幼虫的含水量约在83%左右,到2龄盛食期增高到约为89%,以后变动于90%上下,到末龄成熟时剧烈下降,在化蛹前到达73%左右。在每一龄期中,刚蜕皮而尚未取食时含水量最低,盛食期最高,在蜕皮前又行下降。在试验室条件下以玉米叶饲养的粘虫全幼虫期取食叶片共约3克左右,合干重0.6克;对食物的利用率以鲜重计算为20%左右,以干重计算为24%左右。但不同龄期的食物利用率不同:幼龄的比老龄的高。与此类似的,是不同龄期幼虫对食物中水分的吸收率不同:在一、二龄幼虫中,所吸收的水分占食物鲜重74.9%,相当于食物所含水分的98.9%:而在最后两龄幼虫中,相应数值分别为10.7%和13.6%。故食物中水分对于幼虫的营养作用在幼龄时似乎更为重要。当以其它成分大致相等而含水量不同的玉米叶饲养幼虫时,含水量即使相差不远,也可明显地影响幼虫的生长;此效应在幼龄幼虫中更为显著。随食物所吃下水分的多寡略能影响幼虫对水分的吸收,但差异不显著;此因素虽可影响虫体的含水量,但并不影响幼虫对食物的利用率。食物含水量对幼虫生长的影响,主要是因取食量不同而产生的:幼虫对含水较多的叶片取食量较大,因此生长较快。幼虫在?

For the large-scale and many interface-degrees of freedom multi-substructures system, the direct extensive application of the ordinary Modal Synthesis Method gives rise to some unfavourable factors, such as complicated programming, poor generally interchangeable application, large demand for computer capacity, which make it difficult to be put to practical use. In this paper a multi-substructure modal synthesis method is presented, which is easy to use and requires small computer capacity and has been applied...

For the large-scale and many interface-degrees of freedom multi-substructures system, the direct extensive application of the ordinary Modal Synthesis Method gives rise to some unfavourable factors, such as complicated programming, poor generally interchangeable application, large demand for computer capacity, which make it difficult to be put to practical use. In this paper a multi-substructure modal synthesis method is presented, which is easy to use and requires small computer capacity and has been applied to the modal analysis of multiblades-disk systems.

对大型多内连自由度的多子结构系统,若用经典模态综合方法的直接推广来计算模态,由于程序的复杂性、通用性、计算机容量和效益等因素的限制,根本难以实现。本文提出一种多子结构模态综合方法,实施简易,大大节省了计算机存贮和运算,作为一个应用和考例,已把它用到了多叶片一轮盘系统的模态分析中,且用激光测振考察了结果的精度。

A quasi-three-dimensional design method suitable for industrial purposes in making the centrifugal fan is presented. At the meridional stream surface the concept of an infinite number of blades is assumed and the axisymmetricl flow problem solved. At the rotational stream surface the blade profile or the distribution of blade angle with radius is determined by selecting the load distribution desired or by giving the distribution of the blade suction surface velocity.

本文提出了一种工程上实用的离心风机叶轮的准三元设计法。子午面采用无限多叶片概念,从而可在该面解轴对称问题。回转面的叶片成型,是由选择所希望的负荷分布或给定叶片吸力面速度分布来决定叶片角随半径的分布。

 
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