查询词典 three dimensional

Further theoretical analysis demonstrated the lateral effective width of crescent-shaped quantum wires was 6nm within the regime of quantum size. With two-dimensional separated-confinement-heterostructures, the multi-quantum-wire laser arrays operated in pulsed condition (1kHz/1μs) at room temperature, and their pulse light outpower reached more than 115mW, which is the best among all quantum wire lasers reported previously.

这种多量子线激光器列阵具有二维分别限制的异质结构，并在室温脉冲（重复频率1kHz，脉宽1μs）下产生激射，光脉冲线性输出功率可达115mW以上，这是目前国际上各类量子线激光器的最好水平；子带间能隙最大为27meV，与室温下热离化能相当，优于目前国际上报道的同类量子线激光器的最好水平。

Analysis shows that this approach can find the outliers in high-dimensional space effectively.

分析表明，该算法能有效地发现高维空间数据中的离群点。

An one-dimensional model is used to analyze the flow and pressure drop in a ceramic filter.

用一维定常流动模型研究了陶瓷过滤器元件内的流动与压降规律。

The temperature,time,the rate 0f compression of compressive orthopaedy and filled material directly influence the dimensional stability of orthopaedy bamboo.

压缩整形时的温度，时间，压缩率和填充材料的性质都直接影响整形竹的尺寸稳定性。

For unexploded ordnances, the four dimensional unexploded ordnance scattering function of slant range, azimuth, frequency and aspect angle is firstly estimated via the SWD. Secondly, the amplitude information of the multi-aspect feature in different frequencies is extracted, and the spatial distribution information of multi-aspect feature in different frequencies is quantitative described using the Hu moment invariants further.

对于未爆物目标，首先利用SWD得到未爆物斜距-方位-频率-方位角四维散射函数估计，然后在提取了不同频率下的多方位特征幅度信息的基础上，利用Hu不变矩进一步定量描述未爆物不同频率下的多方位特征空间分布信息。

Based on the design of Chinese Spallation Neutron Source target station neutron beam extraction pipes, shielding efficiency was evaluated using the two-dimensional discrete ordinates transport code DORT for different design models.

基于中国散裂中子源靶站中子通道设计，采用二维离散纵标程序DORT对中子导出通道各种设计方案的屏蔽效果进行计算分析。

With the scores of species niche center defined in n-dimensional niche space, species could be ordinated in the niche space.

物种在生态位空间的分布可以视为&大气状的&，根据物种在n维生态位空间所确定的物种生态位中心点，物种可以排序于生态位空间。

Through the number calculation and the theories analysis that designs oping one-dimensional photonic crystal,the characteristic of TM wave and TE wave defect mode resulting from incident argle and the characteristic of TM wave defect mode resulting from thickness of defect were gotten.The defect mode of TM wave have been in the incident angle 0～π/2,the defect mode of TE wave have been in 0～0.65rad.

通过对设计出的一维掺杂光子晶体的数值计算和理论分析，得出了TM波和TE波缺陷模随入射角变化的特征以及TM波缺陷模随杂质光学厚度的变化特征为：TM波的缺陷模透射峰在入射角为0-π/2范围内均存在，而TE波的缺陷模透射峰只在入射角为0-0.65 rad范围内存在；在一定波长范围内TM波缺陷模的波长随杂质光学厚度近似呈线性变化。

Describe the idea of fast program design on tool profile numeric-control machine code based on two-dimensional design software platform, and the structure and key development technology about the software system, and display a system running example.

阐述了在二维设计软件平台下，快速生成刀具廓形数控加工代码的程序化设计思想及软件系统的结构和关键开发技术，给出了系统运行实例。

Objective To investigate the value of signs of two-dimensional and color Doppler ultrasonogra-phy in diagnosis of thyroid nodules.

目的 探讨二维超声及彩色多普勒超声声像图特征对甲状腺良恶性肿瘤的鉴别诊断价值。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。