散单

The multi-aspect flow of ancient prose was established in Zhanguo era. Its style was basically fixed in South and North dynasty. That is the prose with loose single sentences and the parallel writing with antithetic sentences.

古代散文的多向流程是战国那个特殊的时代奠定的，在南北朝时散文的文体与风格基本定型，主要是指散行单句式的散体文和骈偶化的骈文。

Stems several or solitary, not diffuse-caespitose; fruit vittae (1–)2–4 in each furrow (2–)4–6 on commissure.

抑制数个或单生，不铺散；果油管(1-)2-4在每棱槽(2-)4-6在合生面上。

The nonlinear Winkler-Kelvin sub-grade model is adopted in this simplified model and the complicated 3-D problems of the soil-single piles dynamic interaction are simplified to the 1-D, that is to say, the lateral nonlinear acting force of the soil to the pile shift is simulated with thehorizontal nonlinear springs which have the continuous uniform distribution, while the nonlinear spring restoring force is described by the deteriorated Bouc-Wen model; the radiation damping and material damping due to the energy dissipation and inner friction in the soil are displayed with the dashpots which are in parallel with the horizontal nonlinear springs.

该模型采用非线性Winkler-Kelvin地基模型，将复杂的地基土-单桩动力相互作用的三维问题，简化为一维问题，即，地基土对桩轴的横向非线性作用力，由随深度均匀分布的水平非线性弹簧模拟，非线性弹簧恢复力由退化的Bouc-Wen模型描述；地基土中由于能量耗散和内部摩擦而产生的幅射阻尼和材料阻尼，由与水平非线性弹簧并联的粘壶表示。

Martensia was characterized by either single or multiple network-banded blades, procarps consisting of a four-celled carpogonial branch flanked on one side by a single lateral sterile group and on the other side by a group of cover cells, and cystocarp scattered over fertile blades.

此属的特点为藻体膜叶状且膜叶具有单或多层的网状结构，其雌性殖果孢枝特化具有侧边单一的不孕枝而另一边有一群覆盖细胞，果孢子囊散生在藻体各处。

Single observation tests show that this algorithm can adjust the vertical background structure of the moisture convergence depending on the difference between the observation operator calculation and the TRMM (Tropical Rainfall Measuring Mission) rain rate.

单点试验表明该方案通过调整背景场的水汽辐合和辐散的垂直结构，使得同化后观测算子计算的降水率更接近实况。

Inflorescence a panicle or composed of tough unilateral racemes of biseriate spikelets; racemes digitate or scattered along an axis or rarely single, persistent or deciduous.

花序一圆锥花序或由艰苦单侧的双列小穗(bottlebrush在Harpachne)的总状花序组成；总状花序指状或星散沿着一单个的轴或很少，落叶的宿存或。

The wood structures of Lauraceae were characterized by most diffuse porous; most pores solitary, less multiple and cluster pores; simple and scalariform perforation with few bars; most solitary pore; alternate intervessel pitting; most of rays multiseriate, less uniseriate; all of rays heterogeneous, mostly heterogeneous Ⅲ and Ⅱ type rays; most of axial parenchyma paratracheal type, less banded or marginal type; oil cell and mucilage cell in axial parenchyma cell or ray cell; mostly fiber tracheid and libriform fiber, less septate fiber.

结果表明：除檫木外，其它木材的管孔分布均为散孔材，具较高的单孔率；导管分子穿孔板兼有单穿孔和梯状穿孔2种或者仅具有单穿孔；导管间纹孔式为互列；导管－射线间纹孔式类型丰富，主要为刻痕状和大圆状。木射线有单列和多列射线2种类型，单列射线稀少、短，多列射线数量多；射线组织主要为异形Ⅲ和异形Ⅱ；轴向薄壁组织以傍管状为主，少数有带状或轮界状。油细胞和粘液细胞普遍存在于射线薄壁细胞或轴向薄壁细胞中。木纤维由韧性纤维和纤维管胞组成，部分树种具分隔纤维。

Male inflorescence pendulous, solitary in leaf axils toward base of branchlets or in paniculate clusters on lateral or subterminal shoots; flower solitary and scattered on rachis; perianth calyciform, 4-7-lobed or more lobed; stamens 4-7 or fewer, filaments slender; staminodes small.

托叶早落。雄花序下垂，叶腋单生向基部的小枝圆锥状簇生或在侧或上嫩枝；花单生和在轴上星散；花被calyciform，4-7 有叶或者更有叶；雄蕊4-7或者更少，花丝纤细；退化雄蕊小。

Chirp scaling algorithm is considered more efficient and widely applicable when the bistatic SAR system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by Taylor expansion are so large that the algorithm could lose its precision.In such a case,an equivalent mono-static SAR range mode which has fewer errors than Taylor expansion with large squint angle is proposed to substitute the range history of bistatic SAR.Then bistatic SAR images with large squint angles are gotten by common Nonlinear CS algorithm.The effectivity of the method is verified by Matlab simulation.

在正侧视或小斜视情况下，CS算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性CS算法，实现了在大斜视角情况下的基于GPS反射信号的双基地SAR高精度成像，最后通过Matlab仿真进行了验证。

a system of along-track mode sar based on the gps is established.by seeing the gps signal as a chirp,chirp scaling algorithm of this mode with large squint angle is investigated.chirp scaling algorithm is considered more efficient and widely applicable when the bistatic sar system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by taylor expansion are so large that the algorithm could lose its precision.in such a case,an equivalent mono-static sar range mode which has fewer errors than taylor expansion with large squint angle is proposed to substitute the range history of bistatic sar.then bistatic sar images with large squint angles are gotten by common nonlinear cs algorithm.the effectivity of the method is verified by matlab simulation.

摘 要：建立了基于gps的顺轨sar系统模型，通过将gps信号等效为chirp信号，研究了在该模式下的大斜视角chirp scaling算法。在正侧视或小斜视情况下，cs算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性cs算法，实现了在大斜视角情况下的基于gps反射信号的双基地sar高精度成像，最后通过matlab仿真进行了验证。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。