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We consider an auxiliary function related to the Cauchy transform of the measure μ,, and get that it preserves sign on negative real axis. The property play a role in the study of the transform.

我们考虑了与测度μ的Cauchy变换相关的一个辅助函数,得到了它在负实轴上具有保号性,此性质对研究该变换的一些有趣的分形性质起作用。

By contrasting the experimental, simulated and theoretical value of the load-bearing capacity of three experiment objects, this paper intercepts pictures of destroy shape of the specimens and stresses and strain nephogram of steel tube, inner and outer concrete, and studies on them.

对3个不同钢管直径的T形钢管混凝土芯柱进行试验研究,在选择合理的材料本构模型的基础上,利用有限元软件建立3个试件的有限元模型并对其做轴压下的模拟。

Ciliata consists of two elements, the robust and short filamentous chloronema which is composed of 4~6 oblate cells and the thin and long caulonema like osier on which there are many clavae of 2~5 cells.

丝状绿丝体一般由4~6个短粗柱状细胞组成;而轴丝体则是由多数细长柱形细胞构成,其上间隔分布有2~5个细胞组成的棒状体,初生假根有或者无。

In this engine the shaft and piston barrel are concentric, while the walls of the steam chambers are ovoid.

" "在这个发动机轴和活塞桶是同心,而墙的蒸汽分庭卵形。

Leaves with petiole 25-45 cm or longer, axis slightly flat, grooved adaxially, glabrous or pilosulose; leaflets 5-8 pairs, usually subopposite; petiolule ca. 5 mm; blades adaxially shiny, narrowly elliptic-lanceolate or slightly falcate, 7-15 × 2-5 cm, thinly papery, abaxially glabrous or pilosulose, lateral veins 15-17 pairs, nearly parallel, dense, slender, base cuneate, slightly asymmetrical, apex acute or shortly acuminate. Inflorescences terminal, conical.

叶具叶柄25-45厘米或更长,轴稍平,正面具凹槽,无毛或具小柔毛;小叶5-8 对,通常;小叶柄约5毫米;叶片正面发亮,狭椭圆形披针形或者稍镰刀形, 7-15 * 2-5 厘米,薄纸质,背面无毛或具小柔毛,花序顶生,圆锥状。

Its main features were: the flowering branch 70~170 cm; the inflorescence is racemes or simple panicle; the axis of inflorescence is thick, and the node is distict; there are 4~5 florets in a spikelet, and the spikelet is non-stem; small rachis internodes glabrous, and the pikelet like a stick; there are 2 membrane glume; the lemma is longer or equal to the palea; there are 2 squamas, and 6 stamens; its ovarium like ovatum; there are 3 brushy tigmas; did not see the caryopsis; flowering February-March.

摘要《中国植物志》第九卷第一分册及其它的相关文献均无关于竹亚科簕竹属吊罗坭竹花的描述或记录,本文作者采集制作了该竹子繁殖器官标本,并分别用中文和拉丁文对其进行了描述,其主要特征:花枝长70~170 cm;花序为总状花序或简单的圆锥花序;花序轴粗,节明显;小穗含4~5朵小花;小穗无柄;小穗轴节间无毛,呈棒状;颖2,膜质;外稃长或等于内稃;鳞被2;雄蕊6;子房卵形;柱头3,呈毛刷状;颖果未见。

Finally, the four-unit cylindrically conformal microstrip antenna array is processed and tested. Testing results indicate that, the input VSWR of the antenna array in the vicinity of 1.575GHz is less than 2, the omni-directional performance good, 3dB bandwidth is about 90 degree on axial plane, right-hand circularly polarization good. Overall performance of the antenna array satisfies the design requirements.

对仿真获得的四单元柱面共形微带天线阵列进行了加工测试,测试结果表明该天线阵列在1.575GHz附近工作频带内输入驻波小于2,柱面法向平面全向性良好,轴向平面3dB波瓣宽度约为90。,右旋圆极化效果良好,天线整体性能达到工程设计要求。

Surface plasmon resonances of two-dimensional gold nanoparticles under the electrical dipole source and plane electromagnetic wave(magnetic polarized in z-direction) are investigated.

根据Maxwell电磁理论,探讨无限域中二维细杆形金奈米粒子受到磁场在轴方向极化之平面电磁波与电偶极波源所造成的表面电浆子现象。

The influence of the required quality of prismatic joints to achieve guaranteed cleance and strength was a speciality problem.

棱形联接接头的尺寸和配合精度对保证接头中孔轴之间的间隙,以及各自的机械强度有着非常重要的影响。

At the same time ,to solve the influences of processing efficiency and quality in the 3 axle spiral profiling of coordinate-polar, caused by the MCX314As chip's property of resultant velocity, this paper designs an electronic gear principle circuit on the foundation of electronic transmission principle.

同时为了解决在三轴极坐标螺旋仿形加工中因MCX314As芯片的合成速度特性而产生对加工效率与质量的影响,本系统在研究电子传动原理的基础上设计了电子齿轮原理电路。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力