基于电压源逆变器（V S I）的静止无功发生器（SVG）直接应用PWM控制技术，具有结构紧凑、易于控制、谐波含量小以及功率密度大等优点。
VSI-based SVG using PWM technology has some advantages such as compact structure, simple control, little harmonics and high power density.
本文讨论了脑内血管神经纤维的分布类型、纤维密度与脑内微循环的神经源性调节的关系。
The relationship between the type of distribution and of density of fibers of monoamine nerve in intracerebral vessels and their nerve regulation was discussed.
外源植酸钠的存在，显著降低了AM真菌根内菌丝的碱性磷酸酶活性，增加了AM真菌在土壤中的菌丝密度。
The ALP activity in intraradical hyphae of AM fungi was significantly decreased, and the total hyphal density of AM fungi increased with applied Na phytate.
结果小儿纵隔肠源性囊肿多位于中后纵隔，呈圆形或椭圆形，密度均匀，边缘清楚。
Results All the cysts were located in mid-posterior mediastinum, presenting as a round or oval mass with clear border and homogeneous density.
弦变线电流源之辐射电磁场强及功率密度在近场至远场球面上之变化。
The Variation of Radiated EM Intensity and Power Density on Spheres in Near and Far Field from Array of Time Harmonic Currents.
质子交换膜燃料电池（PEMFC）具有较高的功率密度和能量转化效率，最有可能成为电动汽车的动力源。
The proton exchange membrane fuel cell (PEMFC) is one of the most promising power sources for future electric vehicles due to it's high power density and energy conversion efficient.
并就评估方案集进行计算，绘出抗无源干扰能力最大的X跟踪波段雷达最大发现距离随箔条云距离及箔条云密度变化曲线，并分析其结果。
And also calculates evaluation set. The density movement curve to the farthest discovering distance of X wave band radar is drawn and the result is analyzed.
本文就是为空间电离层环境模拟器研制的扩散型极低气压、低电子温度和极低密度的紧凑型电子回旋共振等离子体源的研制。
A compact ECR plasma source, the strengths of which are its ultra low electron temperature, its low pressure and its ultra low density, was developed and built for such a simulator.
库源比既受肥料水平的影响，也受密度的影响。
Sink: source ratio could be affected by plant density or fertilizer supply level.
超短脉冲激光等离子体源作用时间超短，能量密度高，可调谐，易于控制。
The ultrashort pulse laser plasma source works in ultrashort time, with high energy density and is able to be tuned, controlled easily.
解此方程组可求得等效源的密度值。
By solving these simultaneous equations, we get the density values of the equivalent sources.
保卢辛斯基强调判断一种能量源多么有效方面，能量密度是比存储能力更好的方法。
Palusinski argues that energy density is an even better measure than storage capacity of how effective a power source can be.
结果表明，随着工件阴极电压、源极电压和气压的增加，等离子体密度增大。
It is shown that the plasma density increases with increasing workpiece voltage, source voltage and gas pressure.
现在使用的双源距密度测井响应关系较理想化，很多影响因素都忽略了。
The dual-detector density logging response relation has been widely used, but some factors have been neglected.
自蔓延高温合成中，研究了铁粉含量、压制密度、钡源取代、掺镧、磁场激发对SHS的影响。
Self-propagating high-temperature synthesis, the study of the iron content, to suppress the density of the source replace the barium, lanthanum-doped magnetic field to stimulate the effects of SHS.
研究了运动点源在无粘、不可压且具有小密度差的两层有限深流体中生成的高阶波动。
Higher order waves generated by a moving source in a two-layer inviscid, incompressible fluid of finite depth with small density difference were studied.
土壤质地、滴头流量、土壤密度以及供水方式等因素对于点源入渗有着一定的影响。
With the increment of soil bulk density and water discharge rate, the movement of horizontal wetting front increased and the vertical movement decreased.
采用五栅网离子能量测量装置和法拉第筒测量了宽束冷阴极离子源的离子能量和离子束流密度。
The ion energy and the density of beam flux of cold cathode ion source were measured by pentagrid probing and Faraday cup.
用修正哈达玛方差(MHV)来测量频率源的谱密度已在国内外广泛流行。
Modified Hadamard Variance (MHV) has been widely used for the power spectrum measurement of frequency sources.
利用放射性源的伽马射线轰击井眼周围的岩石，通过对反散射伽马射线计数，可以计算出地下岩石的密度。
A radioactive source is used to bombard the rocks surrounding the wellbore with gamma rays. By counting the backscattered gamma rays, the density of the subsurface rock can be computed.
种源内木材气干密度、力学强度及胞壁率差异不显著，管胞长、宽和壁厚的差异均显著且高于种源间的差异。
Meanwhile, there were not significant differences in wood air dry density, mechanical strength and cell wall percentage of intra provenance.
微型中子源反应堆的反应性和中于通量密度有一定的关系。
In the miniature neutron source reactor (MNSR) reactivity and neutron flux are related.
土壤质地、滴头流量、土壤密度以及供水方式等因素对于点源入渗有着一定的影响。
Soil texture, bulk density and water applied methods are critical factors influenced point source infiltration.
热分析中考虑了坯料的初始温度、外加热源和冷却源的热流密度以及坯料和空气的对流传热。
In the thermal analysis, the initial temperature of billet, beat fluxes (heat flow per unit area) of positive and negative value and convections to surrounding air are considered.
依木材密度所作的聚类分析可以把3个试点均参试的49个种源划分为南、中、北3大类群；
The 49 provenances tested at 3 sites were divided into 3 groups (South, Centre and North) by cluster analysis on wood specific gravity.
但若假设的概率密度函数与真实概率密度函数差异较大，源信号将不能被正确分离。
If the assumed PDF is different from the true PDF considerably, the sources will not be separated correctly.
以硅酸钾为硅源，甲酰胺为催化剂在毛细管内原位聚合形成干凝胶柱，制备了一系列致密度不同的整体柱。
Using potassium silicate as silicon source, formamide as catalyst, a series of silica xerogel monolithic columns with different consistencies were prepared.
六角形节块内的中子通量密度分布采用高次多项式近似表示，最后导出通量矩方程及偏流的响应矩阵方程。应用粗网再平衡和渐近源外推方法加速收敛。
The nodal equations and response matrix equations are derived using higher order polynomial approximations to the spatial dependence of the flux within the hexagonal-z node.
六角形节块内的中子通量密度分布采用高次多项式近似表示，最后导出通量矩方程及偏流的响应矩阵方程。应用粗网再平衡和渐近源外推方法加速收敛。
The nodal equations and response matrix equations are derived using higher order polynomial approximations to the spatial dependence of the flux within the hexagonal-z node.
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