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空气介质
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  air medium
     Self-make Air Medium Molecular Nitrogen Laser and Measurement of the Pulse Energy
     自制空气介质氮分子激光器及脉冲能量的测量
短句来源
     The field distortion near the drip will form small corona area in the air medium.
     结果表明:空气介质中水滴或金属杂质使邻域电场畸变,利于形成空气介质中的小电晕区;
短句来源
     In the thermal shock under air medium, a main damage form of 3D-C/SiC was that oxidation of carbon fibers had been caused by peel-back of carborundum coating.
     3D-C/SiC复合材料在空气介质中的热震损伤相应大致分作三阶段,主要损伤为碳化硅涂层剥落而导致的碳纤维的氧化。
短句来源
     The acoustic and vibration propertics of wood, is the ability to transmit the stress wave or inspire the air medium to spread the vibration that wood shows, given an impact or mechanic vibration.
     木材的声振特性,是指木材在冲击力或机械振动作用下所表现出的在木材中传递应力波或在木材周围激发空气介质、传播振动的性质。 研究内容涉及声响学、物理学、材料力学等诸多学科。
短句来源
     The properties of ultrasonic radiation,propagation,scattering and recieve in air medium are analyzed in this paper.
     研究了空气介质中超声波的辐射、传播、散射和接收等规律性 ,作为超声传感系统设计的理论基础和具体参数选择的依据 .
短句来源
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  air dielectric
     Fourthly, an ultra-broadband patch antenna using a wedge-shaped air dielectric substrate is introduced . Its experimental ratio bandwidth of S11≤–10dB reaches 8.8:1,covering frequencies from 3.05GHz to 26.87GHz .
     第四,采用劈形空气介质与树叶形贴片,实现了8.8:1的比带宽(反射损失不大于-10dB),覆盖3.05GHz至26.8GHz频率范围。
短句来源
     Firstly, in this paper, modification of the surface properties of PE films is studied using an air dielectric barrier discharge plasma at atmospheric pressure, which results arc examined by contact angle measurement, fourier transform infrared attenuated total reflection (FTIR-ATR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM).
     本篇论文首先利用大气压下的空气介质阻挡放电(DBD)对PE进行表面改性,分别采用水接触角、付立叶红外全反射光谱(FTIR-ATR)、X射线光电子能谱(XPS)和电子扫描电镜(SEM)对PE表面改性结果进行表征。
短句来源
     Vibrational temperature of N2(C3IIu) molecules in argon/air dielectric barrier discharge (DBD) ,in which the water electrodes were employed, was researched by analyzing the emission spectrum lines of the N2 second positive band system(C3IIu →B3IIg). It is found that the vibrational temperature decreases with increasing pressure.
     使用水电极装置,在氩气/空气介质阻挡放电中,通过对氮分子第二正带系(C3Ⅱu→B3Ⅱg)的发射谱线进行分析,研究了氮分子(C3Ⅱu)的振动温度随压强的变化.实验结果表明:氮分子(C3Ⅱu)振动温度随压强的增大而减小.
短句来源
     The radiating element of array antenna is air dielectric microstrip patch antenna,which has high efficiency,and the feed network is low loss air strip,which can reduce the loss of the feed line.
     阵列天线辐射单元采用空气介质的微带贴片天线,辐射效率高; 阵列天线的馈线网络采用低损耗的空气带状线形式,降低了馈线损耗。
短句来源
  air-medium
     The results indicate that the air-medium space-adjustable non-contact 3-electrode method can be applied to plate samples and thin films with measuring error of ε_r less than 5% and the order of tanδ up to 10~(-5).
     研究结果表明,空气介质的变间隙不接触电极方法可成功应用于板材和薄膜试样rε和tanδ的测量,rε的测量值误差可控制在5%以内,tanδ可测到10-5数量级.
短句来源
  “空气介质”译为未确定词的双语例句
     The process of densification of the MHD electrode material-La_(1-x)Ca_xCrO_3 by sintering in air is described.
     本文提出了MHD电极材料——La_(1-x)Ca_xCrO_3在空气介质中烧结达到致密化的方法。
短句来源
     (3) In air atmosphere, weight gain of Si3N4/SiC, Si2N2O/SiC and O'-Sialon/SiC by oxidation follows logarithm rule at 1000 癈 .
     (3)在1000℃的空气介质中,Si_3N_4/SiC、Si_2N 2O/SiC及O'-Sialon/SiC的氧化增重符合对数规律。
短句来源
     (6) Cryolite corrosion resistance of Si3N4/SiC is very excellent in air atmosphere.
     (6)在970℃的空气介质中,si3N4/SIC具有优异的抗冰晶石侵蚀性能。
短句来源
     However,the da/dN for 3.5% NaCl solution was found to be 1.6 to 3.4 times higher than that in air when the stress intensity range ΔK increased from 7 to 15kg/mm8/2 for all three load ratios.
     在我们试验的三种载荷比△K=7~15kg/mm~(3/2)范围内,盐水介质的da/dN是空气介质的1.6~3.4倍。
短句来源
     The corrosion test and slow strain rate test of die cast AZ91D magnesium alloy in 0.60mol/L NaCI and NaNO_3 solutions at pH 6 as well as in air were carried out.
     分别在pH值为6的0.60mol/L NaCl,0.60mol/L NaNO_3溶液和空气介质中对AZ91D压铸镁合金进行了一般腐蚀和慢应变速率试验。
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  air medium
The effect of the air medium above the liquid is neglected.
      
The results obtained are compared with the data for the air medium.
      
A study of an air medium influence on the rectilinearity of laser ray proliferation towards the using for large distances and hi
      
The influence of a turbulent air medium on a laser beam space localization precision was studied experimentally.
      
To reduce the turbulent air medium influence on the laser ray space localization precision, the laser beam was positioned inside a heat-isolating tube.
      
更多          
  air dielectric
Frequency characteristic of the type R597 capacity meter with an air dielectric
      
Surface properties and printability of polypropylene film treated by an air dielectric barrier discharge plasma
      
The results showed that air dielectric barrier discharge plasma treatment, for a few seconds, is effective in printing and is economical for industrial use (this will be studied in detail in future work).
      
A flash is a connected plasma whose electrical conductivity is everywhere larger than the air dielectric in which it is embedded.
      
An air dielectric variable is also included for completeness but seldom used for RFI purposes.
      
更多          
  air-medium
Primary lines of bovine endometrial epithelial cells were polarized by subculturing on substrata and maintaining cultures at the air-medium interface.
      
The collagen bed was then raised to the air-medium interface for 7 d (organotypic culture).
      
Stratification and differentiation of these kerationcytes on the nylon substratum was enhanced by raising confluent cultures (7 d) to the air-medium interface so that they were in contact with medium only from the bottom.
      
Moreover cultures grown at the air-medium interface or on a dermal substrate, or both, differentiate even further.
      
When grown at the air-medium interface on the-epidermized dermis, evidence of further morphologic differentiation was found only for well-differentiated SCC cells and normal keratinocytes.
      
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The molecular weight distribution of pvc before and after thermal degradation in different medium (N_2 and air) with different temperature (150℃--190℃) and time of heating (within 1hr.) has been investigated. From the molecular weight distribution curves it is shown that during the process of thermal degradation of pvc, the macromolecules undergo both chain scission and recombination or crosslinking, and that in air chain scis-sion due to oxidation is predominant, while recombination becomes notable in nitrogen....

The molecular weight distribution of pvc before and after thermal degradation in different medium (N_2 and air) with different temperature (150℃--190℃) and time of heating (within 1hr.) has been investigated. From the molecular weight distribution curves it is shown that during the process of thermal degradation of pvc, the macromolecules undergo both chain scission and recombination or crosslinking, and that in air chain scis-sion due to oxidation is predominant, while recombination becomes notable in nitrogen. At higher temperature or longer time of heating, the amount of insoluble Product increases, i. e. crosslinking predominates either in air or in nitrogen.

本文用分子量分布的方法研究温度、时间及介质对聚氯乙烯热老化过程的影响.结果说明在空气介质中,聚氯乙烯的热老化,在200℃以下,1小时以内时,在脱氯化氢的同时以氧化降解为主;随着时间及温度的增加,交联出现,并逐渐占优势。在氮气介质中,聚氯乙烯的热老化,以脱氯化氢及交联占优势。

The high temperature low-cycle fatigue crack growth rates of a Ni-base alloy K5 in directionally solidified and conventionally casted forms have been determined by etectro-potential method. The experimental results have been analysed by linear elestic fracture mechanics parameter ΔK and elestic-plastic fracture mechanics parameter AJ, respectively. It is shown that1. The high temperature low-cycle fatigue crack growth rates of alloy K5 may be characterized by stress intensity range AK.2. At 700℃,the da/dN of...

The high temperature low-cycle fatigue crack growth rates of a Ni-base alloy K5 in directionally solidified and conventionally casted forms have been determined by etectro-potential method. The experimental results have been analysed by linear elestic fracture mechanics parameter ΔK and elestic-plastic fracture mechanics parameter AJ, respectively. It is shown that1. The high temperature low-cycle fatigue crack growth rates of alloy K5 may be characterized by stress intensity range AK.2. At 700℃,the da/dN of directionally solidified alloy K5 is slightly lower than that of the conventional cast, however, at 950℃, the former is oboviously lower than the latter. The difference is about 2-3 to 3.7 times when AK increased from 80 to 150 kg.mm-3/2.3. Under 700 and 950℃, the crack formation periods N; at 1 mm crack length of directionally solidified are considerably longer than that of the conventional one, the difference is about 1,4 and 4 times, respectivelly,

本文件对国产K5定向凝固、普通铸造合金,分别在700和950℃空气介质中,用电位法测定了低周疲裂劳纹扩展速率,并分别用线弹性断裂力学参量△K和弹塑性断裂参量△J对其实验结果进行了处理,结果表明: 1.K5合金的高温低周疲劳裂纹扩展速率da/dN可以用应力强度因子范围△K来表征。 2.定向和普通铸造K5合金700℃的da/dN,前者略低于后者,而950℃时,前者明显地优于后者,当△K从80增至150kg·mm~(-3/2)时,约低2.3至3.7倍。 3.700和950℃下出现1毫米长时的裂纹形成寿命N_i,定向的均比普通铸造的长,分别的为1.4和4倍。

The threshold AKth and the fatigue-crack-growth rate da/dN were investigated with LY-12CS aluminum in both 3.5% NaCl Salution and laboratory air. Three load ratios R were selected. That is R=o, 0.33, 0.67. The results showed that the ΔKth for the case of 3.5% NaCl solution was apparently lower than that in laboratory air.However,the da/dN for 3.5% NaCl solution was found to be 1.6 to 3.4 times higher than that in air when the stress intensity range ΔK increased from 7 to 15kg/mm8/2 for all three load ratios....

The threshold AKth and the fatigue-crack-growth rate da/dN were investigated with LY-12CS aluminum in both 3.5% NaCl Salution and laboratory air. Three load ratios R were selected. That is R=o, 0.33, 0.67. The results showed that the ΔKth for the case of 3.5% NaCl solution was apparently lower than that in laboratory air.However,the da/dN for 3.5% NaCl solution was found to be 1.6 to 3.4 times higher than that in air when the stress intensity range ΔK increased from 7 to 15kg/mm8/2 for all three load ratios. In addition,ΔKth tends to decrease and da/dN increase with increasing load ratio ( or average stress ) for both experimental environments.

本文用中心缺口拉伸试样(CCT试样)测试了LY-12CS铝合金在室温空气和3.5%NaCl水溶液介质中三种载荷比(R=0,R=0.33,R=0.67)条件下的疲劳裂纹扩展门坎值△K_(th)及da/dN,结果表明: (1)在三种载荷比条件下,盐水介质比空气介质明显地降低了△K_(th)而提高了疲劳裂纹扩展速率da/dN。在我们试验的三种载荷比△K=7~15kg/mm~(3/2)范围内,盐水介质的da/dN是空气介质的1.6~3.4倍。 (2)在两种介质中,随着载荷比R(或平均应力)的增加,门坎值△K_(th)下降而da/dN增加。

 
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