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Using finite difference time domain method, the electromagnetic field distribution of THz wave is simulated in a THz 2D PC splitter and by plane wave expansion method the dispersion relation and defect modes are achieved in a THz rotated PC waveguide.5. A woodpile three-dimensional (3D) PC with face-centered-tetragonal symmetry is one of the most popular 3D PCs because of its favorable band gap characteristics. Based on the woodpile fct lattice structure, we propose a novel woodpile THz lattice structure with comparatively decreased symmetry, better band gap properties and easy fabrication by varying some structure parameters.

计算结果为利用非线性光学差频方法产生THz辐射源的实验研究提供了深入和全面的理论基础；四、利用平面波展开法，通过改变二维THz光子晶体的结构参数，对二维THz光子晶体完全带隙进行了优化，分析出两种适合工作在THz波段的二维光子晶体结构；采用时域有限差分法和平面波展开法，计算出THz波在二维光子晶体"T"型分束波导，45度旋转波导中传输的电磁场分布以及缺陷模；五、Woodpile面心立方四角结构是三维光子晶体中被研究最广泛的结构之一。

Adopted a degage pose on the arm of the easy chair- J.S.Perelman; she may be detached or even unfeeling but at least she's not hypocritically effusive; an uninvolved bystander.

以从容的姿势坐在安乐椅的扶手上——j·s·皮瑞曼；她也许是超然甚或无情，但至少不是虚伪的热情洋溢；漠然的旁观者。

Painting is easy when you don't know how, but very difficult when you do. Edgar Degas

你不知道怎么回事的时候，绘画很简单；等你知道了，就很困难。

Because of the thermal stability, the strong oxidative ability and no easy deliquescence, it can oxide many organic compounds such as alkane, alkene, alcohol, etc..

由于KMnO4与有机物反应时，在反应条件和介质不同时其氧化产物不同。

The results showed that recirculation fumigation using AlP tablets dynamic deliquescence in ventilation ducts,which can be manipulated outside the warehouse,was safe,effective,economical and easy operation,and was a method of producing gas matched with phosphine circutation fumigation.

风道投药的实仓试验表明：环流熏蒸的动态潮解法安全、有效，可在仓外操作，是一种操作简便、使用经济、与环流熏蒸配套的产气方式。

I'm sure you'll have an easy delivery.

我相信你会顺利生产的。

Deliveryman: Hey, take it easy. You are too uptight.

不要生气啊，不要太生硬啊。

The formulated shape functions have the property of delta function and the essential boundary conditions can be applied as easy as in conventional finite element method.

然而，在紧支径向基函数点插值方法的实现过程中，仍需要背景积分网格进行辅助计算。

The created shape functions possess the properties of the Kronecker delta function, which allows easy imposition of essential boundary conditions.

而点插值法具有精确的函数拟合性质，且形函数具有Kroneckerdelta函数的特性，使得施加本质边界条件变得简单。

Under such a condition, the division of finite dement grid is convenient and the forward and inverse operation is easy.

目前，激电数据的二维反演主要针对高密度激电数据，而对于常规的激电测深则很少涉及。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。