查询词典 by comparison
- 与 by comparison 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Through the analysis of the work principle of three phases voltage resource PWM converter, set up the low and high mathematic models, deduce the restriction equations about grid voltage, grid current, modulation voltage and the DC output voltage and the calculation equations of the AC-side inductance and the DC-side capacitance. There are two control strategies are adopted: Predicted current control strategy and voltage-current two closed-loop control strategy, and give a comparison by theory and practice.
通过分析三相电压源型PWM变换器的工作原理,分别分析了低频和高频数学模型,并推导出了交流侧电压电流、调制电压、直流侧电压之间的数学约束关系以及交流侧电感和直流支撑电容参数的选取依据公式;分析对比了两种控制策略:预测电流控制和电压电流双闭环控制并加以实验验证;同时采用了负载电流前馈补偿和本文提出的一种基于专家系统的神经元新型智能PI控制器两种方法大大提高了整个系统的动态响应性能,并在仿真和实验中加以验证,这也是本文研究的重点内容之一。
-
This study classified the nine elder residences as rural style and urban style and made comparison, to analyze both of them and obvious discrepancy was found, except for investigating basic areas and ratios, ground plan of all elder residences are drawn for the reference of planning and designation.
本研究将九所老人住宅分为郊区型与市区型并作比较,分析两者却有明显差异,除了调查基本面积及比例之外亦将各所老人住宅绘制平面图供规划设计参考用
-
In any event, the Holocaust pales in comparison to the number of dissidents and Christians killed in Soviet gulags, which Holocaust deniers usually attribute to Jews.
和苏联在古拉格杀死的异议者、基督徒相比,大屠杀不值一提。
-
ST03 high bility double set dozen the gum machine mainly have to anticipate a pump, solid turn a pump, comparison pump, to anticipate pump rise and fall system, adjust ratio structure and mix gum system, spirit to move system, liquid to press system and electricity system to constitute.
ST03高能双组份打胶机主要有基料泵、固化剂泵、比例泵、基料泵升降系统、调比结构、混胶系统、气动系统、液压系统及电气系统组成。
-
ST03 high bility double set dozen the gum machine mainly have to anticipate a pump, solid turn a pump, comparison pump, to anticipate pump risefall system, adjust ratio structuremix gum system, spirit to move system, liquid to press systemelectricity system to constitute.
ST03高能双组份打胶机主要有基料泵、固化剂泵、比例泵、基料泵升降系统、调比结构、混胶系统、气动系统、液压系统及电气系统组成。
-
By comparison with several examples, it is shown that the two kinds of similar Haar wavelet transforms have higher calculation precision, abilities of better de_noise, and lower calculation complexity.
通过比较,证实了这两种相似的小波变换具有较高的计算精度和较好的消噪能力,且具有较低的计算复杂度。
-
There was a significant faster dissolution of haematomas under the treatment with Hirudoid in comparison to placebo.
血肿的分解,喜疗妥组要显著快于安慰剂组。
-
Through comparison of the typical strategies on international operation of some Chinese HAEs, such as Haier and TCL, the Article tried to analyze the pro and con of the selected strategies.
然后,本文从多个方面对二者的国际化经营道路进行比较,重点分析了TCL和海尔的国际化经营的相同点和不同点。
-
Applied with test of potted plant and measurement absorbency for study physiological response of activity of cell defense enzymes and lipid peroxidation of slash pine's half-sib under water stress. There are 7 families comparison with general slash pine. The contents of superoxide dismutase, catalase, antioxidant, malondialdehyde and the rate of superoxide anion(-O2) generating are mensurated under normal water condition while soil water content is 70% and light water stress while soil water content is 55% to 60% and medium water stress while soil water content is 35% to 40% and heavy water stress while soil water content is 20% to 25%. The test result indicate that either water grads or families of contents of SOD,CAT,AsA,MDA are mighty notable difference. The rate of -O2 generating is notable difference within families. The rate of -O2 generating is mighty notable difference within water grades.
为研究湿地松优良半同胞家系保护酶及脂质过氧化作用对水分逆境的生理响应,采用盆栽试验和吸光度测定结合的方法,以普通湿地松种子为对照,测定了七个湿地松半同胞家系在正常水分状态(土壤相对含水量为70%)、弱度水分胁迫(土壤相对含水量为55%~60%)、中度水分胁迫(土壤相对含水量为35%~40%)和强度水分胁迫(土壤相对含水量为20%~25%)条件下的SOD、CAT、AsA、MDA的含量和-O2产生速率,研究结果表明:无论是不同水分梯度还是不同家系水平,SOD、CAT、AsA活性和MDA含量的差异均达极显著水平,不同家系水平间-O2产生速率有显著差异,不同水分梯度间-O2产生速率差异达极显著水平。
-
Applied with test of potted plant and measurement absorbency for study response of the contents of photosynthetic pigments of slash pine's half-sib under water stress. There are 7 families comparison with general slash pine. The contents of photosynthetic pigments are mensurated under feebleness water stress while soil water content is 55% to 60% and moderate water stress while soil water content is 35% to 40% and heavy water stress while soil water content is 20% to 25%. The test result indicate that either water grads or families of chlorophyll and chlorophyll a and chlorophyll b and Chla/Chlb and carotenoid and Caro/Chl are mighty notable difference. The Chl and Chla and Chlb and Chla/Chlb little drop from normal soil water to initial water stress. Then drop obvious with increased water stress. The Caro and Caro/Chl little drop firstly from normal soil water to initial water stress,then up in metaphase water stress,after drop in evening water stress. The Chl and Chla and Chlb and Chla/Chlb and Caro of slash pine'half-sib are over general slash pine. The Chl and Chla and Chlb and Chla/Chlb and Caro of 464 and 1027 are over average value of slash pine's half-sib under water stress. The Caro/Chl of 609 and 46 are over average value of slash pine's half-sib under water stress.
为研究湿地松半同胞家系光合色素对水分逆境的响应,采用盆栽试验和吸光度测定方法,以湿地松普通种子为对照,测定了七个湿地松优良半同胞家系在弱度水分胁迫(土壤相对含水量为55%~60%)、中度水分胁迫(土壤相对含水量为35%~40%)和强度水分胁迫(土壤相对含水量为20%~25%)条件下的光合色素,对湿地松优良半同胞家系在不同水分胁迫条件下的光合色素进行了研究,结果表明:无论是不同水分梯度还是不同家系水平,Chl、Chla、Chlb、Chla/Chlb、Caro、Caro/Chl均有极显著差异;从正常水分至水分胁迫初期Chl、Chla、Chlb、Chla/Chlb稍微下降,后随着水分胁迫程度的加深下降较快,从正常水分至水分胁迫初期Caro、Caro/Chl先稍微下降,胁迫中期上升,胁迫后期下降;所有半同胞家系的Chl、Chla、Chlb、Chla/Chlb、Caro高于普通种,在水分胁迫条件下家系464、1027的Chl、Chla、Chlb、Chla/Chlb、Caro高于家系的平均水平,家系609、46的Caro/Chl值高于家系的平均水平。
- 相关中文对照歌词
- Empty Souls
- Love You Both
- Porcupine
- Somebody Like You
- Wolves
- Masterplan
- Emphasis
- Money Greedy
- Enough Said
- Whole World Watchin'
- 推荐网络例句
-
You can snipe the second and third union leaders from this position.
您可以鹬第二和第三工会领袖从这一立场出发。
-
Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.
针对当前XML数据流质量检测存在的不足,提出构建XML键的矢量矩阵作为窗口,利用矢量积小波变换多级分解与重构XML数据流,再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法,满足XML数据流质量重构时实时检测的要求,保证XML数据的约束性、一致性与完整性;为了更好的适应网络负载,采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。
-
This is a very big challenge to developers especially that Ajax is constantly changing.
这对开发者来说是一个非常大的挑战,尤其是需要不断变化的Ajax。