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unidirectional
相关语句
  单向
     The vacuum thermo-cycling tests (93~413 K, 10~(-5)Pa) were carried out on the unidirectional M40J/5228A composite.
     对单向M40J/5228A复合材料进行了真空热循环试验(93~413K,10-5Pa)。
短句来源
     The Influence ofα-Al_2O_3 Filler Addition on the Properties of Unidirectional SiC Fiber-Reinforced Aluminum Phosphates Composites
     α-Al_2O_3填料添加量对单向碳化硅纤维增强磷酸铝基复合材料性能的影响
短句来源
     The esophageal H wave is unidirectional, the P-A, A-H and H-V intervals were similar to its counter part in the standard HBE (r = 0.86- 1.0).
     食管记录的H波为单向波,其P-A、A-H及H-V间期与右心HBE的相应部分基本一致(r=0.86~1.0)。
短句来源
     UAOR:A Routing Protocol for ad-hoc Mobile Network with Unidirectional Link
     单向ad-hoc移动网络路由协议UAOR
短句来源
     Unidirectional QoS Routing Protocol Based on Energy Conserving in Ad Hoc Network
     Ad Hoc网络中基于能源节省的单向QoS路由协议
短句来源
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  定向
     Unidirectional Solidification of Ti 3Al+Ti 5Si 3 Dual Phase Alloy by Floating Zone Method
     悬浮炉法定向凝固Ti_3Al+Ti_5Si_3双相合金
短句来源
     A unidirectionally solidified Ni51.2Mn20.0Fe13.0Ga15.8 polycrystalline rod was prepared under super high temperature gradient unidirectional solidification condition.
     利用超高温度梯度定向凝固装置制备出定向Ni_(51.2)Mn_(20.0)Fe_(13.0)Ga_(15.8)磁致形状记忆合金。
短句来源
     Unidirectional Growth of the MgF_2 Single Crystal
     定向生长MgF_2单晶
短句来源
     The effect of solidification rate on the primary M_7C_3 phase of high chromium cast iron in-situ composite with the composition of Fe-3.35wt%C-27.5wt%Cr was studiedby the unidirectional solidification of liquid metal cooling.
     采用液态金属冷却的定向凝固设备,研究了凝固速度对3.35wt%C-27.5wt%Cr高铬铸铁原位生长复合材料初生M7C3型碳化物的影响。
短句来源
     INTERFACE MORPHOLOGY AND SOLUTE SEGREGATION OF 8090 Al-Li ALLOY DURING UNIDIRECTIONAL SOLIDIFICATION
     8090Al—Li合金定向凝固界面形态与溶质偏析
短句来源
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  单向的
     Unidirectional LC alignment is achieved along the microgrooves only for moderately thick LC layers (1 < d<10 μm), but not for thin (d<1.0 μm) or thick (d>10 μm) LC layers.
     单向的LC不是沿厚度小(d<1.0)或大(d>10μm)的纹沟方向,而是沿着中等厚度(1
短句来源
     It is found that urbanization and industrial structureco-integrate, that there exists a bidirectional Granger-causality between the urbanization andthe tertiary industry, that there exists a unidirectional Granger-Causality between urbanizationand the first industry, and that there doesn't exist the Granger-causality between urbanizationand the second industry.
     结果表明,城市化与产业结构存在协整关系,城市化与第三产业存在双向的Granger因果关系,城市化与第一产业存在单向的Granger因果关系,而第二产业与城市化之间没有Granger因果关系。
短句来源
     Empirical results suggest a long-run stable unidirectional causality running from energy to economic growth.
     我国能源消费和经济增长之间是单向的从经济增长到能源消费的因果关系,而且这种长期关系是稳定的,并没有随时间而发生结构性变化。
短句来源
     There is a unidirectional Granger causality between agriculture products' total export and agricultural GDP and bidirectional granger causality between labor-intensive agricultural products and agricultural GDP. But there shows no Granger causality between land-intensive agricultural products and agricultural economic growth.
     农产品出口增长与农业经济增长之间存在单向的Granger因果关系,劳动密集型农产品出口增长与农业经济增长之间存在双向因果关系,而土地密集型农产品出口增长与农业经济增长之间没有Granger因果关系。
短句来源
     This article utilizes China’s data to examine six kinds of statements of Wagner’s law. We conclude that no evidence supports unidirectional causality between national output and public expenditure.
     文章基于瓦格纳定律,利用经验数据考察了我国公共支出与国民产出之间的经济关系,统计分析的结果表明,从1979年到2003年,瓦格纳定律在我国并不成立,即国民产出与公共支出之间不存在单向的因果关系。
短句来源
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  “unidirectional”译为未确定词的双语例句
     THE STABILITY OF SOLID-LIQUID INTERFACE OF UNIDIRECTIONAL SOLIDIFIED Fe-C EUTECTIC ALLOY
     THE STABILITY OF SOLID-LIQUID INTERFACE OF UNIDIRECTIONAL SOLIDIFIED Fe-C EUTECTIC ALLOY
短句来源
     Unidirectional chiral conversion rate of D-NNA to L-NNA was (50 .03±8.5)%.
     D NNA到L NNA的单项手性转化率为(50 03±8 5)%。
短句来源
     In unidirectional growth zone, the martensitic variants are parallel to crystal growth direction, and r phase becomes smaller and distributes homogeneously. The Ni51.2Mn20.0Fe13.0Ga15.8 alloy undergoes a reversible thermoelastic martensitic transformation during heating and cooling and the transformation temperatures, M, = 121. 3℃ , M1 = 99. 3℃ , A, = 1181℃ , Af = 147℃ , respectively.
     Ni_(51.2)Mn_(20.0)-Fe_(13.0)Ga_(15.8)合金在加热和冷却过程中发生热致马氏体相变及逆相变,马氏体相变温度M_s=121.3℃,M_f=99.3℃,A_3=118℃,A_f=147℃。
短句来源
     Composite treatment ((NH_4)_2HP_O_4+H_3PO_4)was selected to modify hybrid carbon/Kevlar fibers, which improved both interfacialadhesion and mechanical properties of the unidirectional and 3-D hybrid composites.
     在以上实验结果的基础上,选择复合处理方法(即(NH_4)_2HPO_4+H_3PO_4)对碳/芳纶混杂纤维进行表面处理。
短句来源
     The reverse pattern was found in p27/Kip1-Cyclin D1 and p27/Kip1-CDK4.On the other hand,unidirectional expression was found for Cyclin D1 and CDK4.Conclusion:Cyclin D1,CDK4 and p27/Kip1 each play a role in hypopharyngeal squamous cell carcinoma progression and together can predict the probable disease course and outcome.
     P27Kip1与CyclinD1,P27Kip1与CDK4在下咽癌组织中多呈反向表达,CyclinD1与CDK4多呈同向表达。 结论:CyclinD1、CDK4与P27Kip1在下咽癌发病机制中共同作用,对预后有一定的参考价值。
短句来源
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  unidirectional
The widely used unidirectional CaMV35S promoter has been modified to a bidirectional promoter in this work by fusing a CaMV35S minimal promoter (Pmini) at its end in opposite orientation to the original promoter.
      
An inverse method of elastic constants for unidirectional fiber-reinforced composite plate
      
An inverse method is presented to determine the elastic constants of an experimental sample, a titanium graphite unidirectional fiber-reinforced composite plate, using wavelet transform and neural networks.
      
Atomic force microscopy (AFM) in force modulation mode was adopted to study the cross-section surface of unidirectional CF/PAA composites and the relative stiffness of various phases, including CF, interphase and resin.
      
It is underlined that the quantitative alterations in the gonad and liver fatty acid patterns are unidirectional.
      
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A reaonant frequency equation of the unsymmetrical end-plate megnetostrictivetransitting trsnsducer has been derived. From the solution of wave equation by applyingof this equation to five different contructed megnetostrictive transducer after rearrangingand modifing five corresponding formulae have been developed some of which were notreported before. It is proved that this resonant frequency equation can be regarded as ageneral basic equntion of all megnetostrictive transducers of different construtions. For...

A reaonant frequency equation of the unsymmetrical end-plate megnetostrictivetransitting trsnsducer has been derived. From the solution of wave equation by applyingof this equation to five different contructed megnetostrictive transducer after rearrangingand modifing five corresponding formulae have been developed some of which were notreported before. It is proved that this resonant frequency equation can be regarded as ageneral basic equntion of all megnetostrictive transducers of different construtions. For the convenience of calculation, a group of curves showing the relation betweenresonant frequency and dimensions of a T--shaped transducer is plotted. By using the electro--mechanieal analogy and its fundamental definitions, the equa-tions for calculating the acoustical efficiency of the unsymmetrical end-plate megnetos-trictive unidirectional transmitting transducer and its sound radiating power arediscussed.

本文从波动方程的解出发,推导了不对称盖板磁致伸缩发射型换能器的谐振频率方程。并从该方程出发,推导了五种特殊状态下的谐振频率方程。有些方程在文献中早就发表;有些至今尚未报导。本文把这些单个方程系统地连贯起来,并认为不对称盖板磁致伸缩发射型换能器的谐振频率方程是这些方程基本通用方程。 为便于计算,文中对T型换能器还作出计算图表。 利用机电类比和基本定义还列出了不对称盖板单向发射换能器的机声效率和辐射声功率的计算公式,讨论了提高机声效率和辐射声功率的方法。

A two-segment electronic commutator is the simplest one. It is pos- sible to switch stator current two times per period. Two times per period electronic commutation dc motor consists of a single phase synchronous motor with a rotor position sensor and two power electronic switches. It is necessary that motor would have unidirectional torque, i. e, no zero torque in torque-position characteristic. Here is proposed a single phase with neutral wire synchronous motor, which is special and reversible. It can...

A two-segment electronic commutator is the simplest one. It is pos- sible to switch stator current two times per period. Two times per period electronic commutation dc motor consists of a single phase synchronous motor with a rotor position sensor and two power electronic switches. It is necessary that motor would have unidirectional torque, i. e, no zero torque in torque-position characteristic. Here is proposed a single phase with neutral wire synchronous motor, which is special and reversible. It can be self-startmg and would be much more economical. The motor presented differs from the conventional single phase synchronous motor in the following point in the construction: 1) The magnet poles are distributed unsymmetrically; 2) The single phase winding is divided into two equal parts by virtue of neutal wire; 3) Two part windings with a fractional or short pitch (θ_m<π) are used. The principle of operation of this motor is described by electromagnetic torque as shown in the equation T_(x-θ_m-A)=2C_m (sum from k=1 to ∞(1/k) A_(km) coskωt·sink(θ_m/2)] it contains not only odd harmonic component but also even one. This principle is confirmed in the application of vidio tape recorder.

二片的电子换向器是最简单的换向器,它使定子电流每周切换二次。每周二次电子换向直流电动机由带转子方位传感器的单相同步电动机和两个功率电子开关组成。这种电动机必须具有单向转距。也就是说,在转矩一角度曲线中没有0转矩点。

Active sound absorbers are more effective for canceling the low frequency noise in ducts. In this paper, a new active sound absorber is presented, which consists of an unidirectional microphone, a time delay device and an unidirectional loudspeaker. This new absorber can achieve an attenuation of 35-55 dB for tone signal in the frequency range of 100-315 Hz; an attenuation of 14-24 dB for third octave noise; and for wide band noise, an attenuation of 8-20 dB is achieved within one octave band.

有源消声器对于管道中低频噪声的抑制比较有效。本文介绍的由单指向性传声器、延时器、单指向性扬声器构成的有源消声器,对于单频声,在100—315Hz频率范围可降低35—55dB;对于1/3倍频程噪声,可降低14—24dB;对于宽频带噪声,在一个倍频程内可降低8—20dB。

 
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