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By adding an equivalent harmonic impedance in the branch circuit of power grid, this HAPF could force all the harmonic currents flow into passive power filters, which resulting in eliminating harmonic contamination more effective. And using the capacitive feature of PPF in the fundamental frequency, this HAPF could compensate fixed-capacity reactive power without increasing APF's burden. Moreover, in order to decrease APF's cost, the fundamental voltage will largely be endured by capacitor in view of the series resonance circuit tuned at the fundamental frequency, so the APF just bears little harmonic voltages.

其基本工作原理是:有源部分等效于在电网支路中串联了一个谐波阻抗,该谐波阻抗对基波电流不起作用,而对谐波电流产生很大阻碍作用,迫使谐波电流流入无源滤波器,从而达到滤除谐波的目的;同时新型注入式混合有源滤波器还充分利用了无源滤波器的无功补偿功能,在不增加有源部分容量的前提下,可以提供一定容量的无功功率;由于有源部分承受的电网基波电压不大,也没有基波电流流入,因此逆变器容量小,初期投资较小。

ARI and HALS, developed from traditional dual laterolog tool, can acquire more logging curves without increasing more operations so to effectively identify inhomogeneous formation such as thin beds, fractures, etc.

ARI和HALS都是建立在原有双侧向的基础上,在不增加测井工作量的情况下可获得更多、更丰富的测井资料,对认识薄层、裂缝等不均匀地层有了突破。

Test and simulation shows that the method can eliminate the unsmooth shortcoming caused by subsection low order interpolation with its inherent feature, and can meet the vision effect in inner capacity reconstruction. Further more the volume measurement error are reduced after interpolated by cubic spline without increasing any calculation, and the measurement relative error could reach 2‰ required by the system.

实验和仿真结果证明:该方法能够克服直接累加和传统的分段低次线性插值方法由于函数本身的特性,在各次间歇测量点处产生的衔接不光滑性,满足了变径内腔内表面容积重建中的视觉需求;同时在不增加计算量的前提下使得插值后容积的测量精度得到了提高,且满足2‰测量误差的要求。

Natality, mortality and population The mature of competition I1

当单位个体出生率正好平衡单位个体死亡率,种群密度既不增加也不减少时,此时的种群密度为平衡种群密度。

The first kind is 0-equation model. It only includes mass and momentum conservation equations. Great progresses have been made in improving this model. It has successfully been applied to many natural rivers with complicated boundary geometry. The second kind is κ-ε model. The κ equation and ε equation are needed, besides mass and momentum conservation equations. Many researchers have studied the depth-averaged mathematical models of turbulence in recent years. However, the models were used mostly in regular artificial canals or natural water areas with simple boundaries.

对于宽浅型河流,采用深度平均法进行流场计算时,用得较多的有两类模型:一类是不增加任何脉动量的偏微分方程的模型,这类模型已在适体坐标下运用得较多且较成功;另一类是κ-ε二方程模型,它是近几十年来广泛应用的一类湍流模型,并发展了许多具体的形式,但大多数只对顺直河道进行了研究,对弯曲较大的河道研究不多,本文运用适体坐标,采用正交交错网格及非正交交错网格,把此模型运用到了弯曲较大的河段及具有汇流的河段,取得了较大的成功。

These Standards, like other International Standards, are not intended to be used to create non-tariff trade barrier s or to increase or change an organization′s legal obligations.

如同其他国际标准一样,这些标准不是用来制造非关税贸易壁垒,也不增加或改变一个组织的法律责任。

Because RFCA in a bipoiar fashion can enlarge lesion surface area without increasing the depth, and its particular lesion distributions involved the electrode/tissue interface and the part between the two adjacent electrodes, there is much opportunity to hit the target in bipolar fashion so long as the orientation of the pathway or the any part of reentant circle is not parallel to the electrode-connecting line, whatever at any angle.

因为双极消融法比常规单极消融法有更大的消融面积但不增加深度,而且其组织损伤分布于两电极与组织的交界面和两电极之间区域,所以只要旁道或折返环路的任何部位的走向与两电极的连线不相平行,在任何夹角下双极消融均比单极消融有更多的击中机会。

Chinese Women's Volleyball下不去place the ball on the 4th, the same place on the 3rd to Nigel Shipman, an increase of the excessive burden.

中国女排的四号位下不去球,同样给薛明的三号位增加了过多的负担。

In this article, high DS and low viscosity carboxymethyl starch was prepared in aqueous media through the reaction between corn starch with acid treatment and etherifying agent, the effect of acid treatment time, liquor/material ratio, the amount of sodium hydroxide, the amount of monochloroacetic acid, etherification time, and reaction tempera.

以玉米淀粉为原料,采用酸化-醚化复合变性的方法在水相中制备高取代度低黏度羧甲基淀粉,探讨了酸化时间、液固比、NaOH用量、ClCH2COOH用量、醚化反应时间、反应温度对羧甲基化过程的影响,研究发现,对原淀粉进行酸化,可以在不增加其它反应试剂用量的基础上提高产物的取代度,但是酸化时间不应过长。

Bursting with antioxidants and vitamin C, its rich lathering action leaves the skin feeling soft, clean and fresh.

泡沫持久,溫和不刺激,清爽不增加皮肤负担,海洋成分与植物萃取精华使肤质细致柔嫩洗淨容易,无粘膩感。

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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷

Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.

Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。