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The use of the ratio between the migration length and the diameter of the comet head (LDR, see Tice et al., 2000) as a parameter to represent the data of the genotoxic effects in D. polymorpha was found (Bolognesi et al., 2004) to be able to reduce the inter-individual variability of the data (from 20–30% for TL to 5–10% for LDR).

使用的,两者的比例约为迁移长度和直径的彗星头(低剂量辐射,见泰斯对持不同等人, 2000年)作为参数,以代表该数据的遗传毒性效应四多形被发现( bolognesi等人, 2004年)为了能够减少跨个别变异性数据(从20-30 %铊,以5-10 %的LDR )。

In this study, based on the Rnl, extinction coefficient k, transition coefficient of canopy layer stomatic resistance K', aerodynamics resistance ra and rc calculated with the data of Rn, LAI, rsi, the daily transpiration variation of Picea purpurea, Larix principisrupprechtii, Hippophae rhamnoides ,Betula platyphylla and Populus cathayana were studied in Datong County, Qinghai Province. Comparing with the practical transpiration variation measured by Li1600 Steady Porometer, the relative error of this model was less than ±15%, and the results were stabilized and tested by precision analysis.

本研究通过对Rn、LAI、rsi的实地观测,确定了林冠截流净辐射、消光系数、冠层阻力转换系数、空气动力学阻力和冠层整体气孔阻力,对青海大通地区紫果云杉、华北落叶松、沙棘、白桦和青杨的日蒸腾过程进行了模拟,与用快速称重法订正的Li1600稳态气孔仪实测蒸腾结果对比,模拟的相对误差在±15%以内;模型敏感性分析发现,温度、LAI以及rsi是决定模拟结果的主要参数,模型对各参数变化反应不敏感。

The paper studies a quadrifilar helix antenna with good radiation property and proposes a new one.It has four feed ports and the phase difference between two borders upon ports is 90 degree.

K ilgus在1968年提出的谐振式四臂螺旋天线[1]具有一些引人注目的特点,该天线通过选择适当的物理尺寸以及馈电方式可以形成不同的辐射方向图;此外它还具有重量轻、尺寸小、不需要参考地的优点。

The paper analyzes the electrical corona phenomena, its effect to high_voltage transmission system and present detecting technology. It puts forward a double spectrums imaging system based on spectrum characteristic of electrical corona. It is all-weather and independent of environment radialization and temperature effect. It responds fast and can work in move .Two light ways image for a scene respectively: one way is UV image ,the other is visible image. Then we use image registration and infusion synthetically to form a complex image .The theory and methods of image infusion is explained.

论文基于电晕放电的光谱特性,针对现有电晕放电检测手段的优缺点,提出了一种全天候、不受环境辐射和温度影响、响应速度快、可进行航拍的双光谱图像检测方法:两个光路分别对同一场景成像,一路是紫外图像,一路是可见光图像,综合利用图像配准与融合技术,形成合成图像,在合成的图像中保留每个传感器所获取的重要信息,图像里既有紫外光源,也有可见光背景图像。

Female flowers: perianth tube base adnate to ovary; staminode-body cupular, inconspicuously radiately 6-ribbed; anthers sterile; ovary inferior; placentas 10-12, irregular; integument 1; gynostegium robust.

雌花: 花被筒基部贴生于子房;退化雄蕊身体杯状,难以觉察辐射状6肋;花药不育;子房下位胎座10-12,不规则;珠被1;合蕊冠坚固。

In this paper,the method to estimate land surface emissivityis modified when the mono-window algorithm is applied to retrieve LST and LSE from Landsat TM6 and ETM+6 data of the study area in 1989,1997,2000 and 2002.Besides,the resultant multi-temporal LST images are normalized radiometrically through relative radiometric correction based on RBF neural network.

运用改进后的单窗算法对上海中心城区1989、1997、2000和2002年四个特征年份的地表温度和地表发射率进行定量反演,并运用RBF神经网络建立多时相遥感影像的相对辐射校正模型,对不同时相影像进行标准化处理。

It abandon the traditional measure that divide the development course of the scientific and technological park according to the time, and redistrict their development courses according to the logic route that the park grew up, then divide development course into three stages: embryonic stage, it introduce domestic and international agricultural new and high technology , advanced equipment directly, engaged in running an enterprise on a commercial way, use the new and high technology to carry on precise, deep processing or storing and keeping fresh to the high-quality agricultural and animal products, do not have cooperation with local peasant basically; the stage of growing up, the park brings along local peasants production, does not confine to the production of the industrial base in the park again, a kind of nonstandard cooperative form has appeared between peasant and park; at ripe stage, the park sets up the training center of agricultural science and technology, carry on the professional technical training to the industrial base and peripheral peasant, spread through three kinds of diffusion effects, such as radiation, the grade

摒弃了按时间划分科技园区发展历程的传统作法,按照园区成长的逻辑路线对其发展历程进行了重新划分,将发展历程分为三个阶段:萌芽阶段,园区内直接引进国内外农业高新技术、先进设备,从事企业化生产,运用高新技术对优质农畜产品进行精、深加工或储藏保鲜,与当地农户基本上没有合作关系;成长阶段,园区带动当地农产生产,不再局限于园区內产业基地的生产,农产与园区之间出现了一种不规范的合作形式;成熟阶段,园区建立农业科技培训中心,对产业基地及周边农产进行专业技术培训,通过辐射扩散、等级扩散、跳跃扩散三种扩散效应,把经济动力和创新成果传导给周围地区,园区进入规范化管理阶段。

A long solid specimen is resistively heated to a steady high-temperature state by a steady electrical current.

利用恒定大电流将一个长试样加热到高温稳态,由于存在热传导和辐射,试样表面的温度分布是不均匀的。

Absolute spectral responsivity standard detectors with uncertainty .035%.

不确定度。035%的高精度光谱辐射功率标准

Culm sheaths with well-developed auricles; oral setae usually radiate, less than 1.5(–2) cm

有发育良好耳廓的竿箨;通常辐射状的口头刚毛,1.5(-2)厘米的不到 6

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。