半球形的
- 与 半球形的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Nutlets 4, semiglobose-tetrahedral or subulate trigonous-tetrahedral, shiny, glabrous or pubescent, rarely tuberculate, adaxial 3 surfaces subequal in size or bottom smaller than 2 lateral surfaces, longitudinal vein at juncture of 2 lateral surfaces, sessile or with a short carpophore from corner of 3 adaxial surfaces, abaxial surfaces flattened or convex, acute or obtuse ribbed, rarely narrow winged; attachment scar at bottom of carpophore or at corner of 3 adaxial surfaces when sessile.
小坚果4,三棱四面体,发亮的半球形四面体或钻形,无毛或被短柔毛,具瘤,正面3 表面大小近等或者最后的小于2侧面的很少,在2侧面的接合的纵向脉,角落的3正面的在底部附件痕的果瓣柄或什么时候无梗。
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The simulation and experimental results verify the validity of proposed illuminator for leadless solder joint inspection,and show it can enlarge the feature distances from different classes.
仿真和实验结果表明,所设计的光源在检测无铅焊点时同样有效,并能使不同类焊点间的特征距离更大,最大为半球形光源照射下的11.88倍,从而提高了特征在无铅焊点缺陷检测的分辨能力,验证了光源设计的有效性。
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Vesic's solutions to cavity expansion that include cylindrical cavity expansion and spherical cavity expansion are introduced. Then cylindrical cavity expansion theory is applied to study compaction effect of pile driving in saturated soil. Based on the results of conventional triaxial tests, a trilinear curve model is used to simulate stress-strain curve of strain-softening materials. Meanwhile, trilinear curves are also used to simulate curves of volumetric strain, minor principal strain and major principal strain. By using elasto-plastic theory, analytical solutions to cylindrical cavity expansion in strain-softening soil are presented. According to the mechanism of statically pressed pile driving, compaction effect of pile tip can be viewed as hemispheric cavity expansion. Therefore spherical cavity expansion theory is applied to obtain the solutions to stress, strain, displacement fields and final pressure. Resistance force of pile tip is calculated to estimate static pressure.
介绍了Vesic关于圆孔扩张问题的解答,其中包括柱形孔扩张问题和球形孔扩张问题,并应用柱形孔扩张理论分析了饱和软土中的沉桩挤土效应问题;在常规三轴试验成果的基础上,采用三折线模型模拟具有应变软化性质的岩土材料的应力应变关系曲线,分析了在应变软化土体中沉桩时桩周土的位移场、应力场和应变场的变化,得到了解析解答;分析了静压桩的沉桩机理,并利用球形孔扩张理论,视桩端处的挤土为半个球形孔的扩张,分析了桩端处土的位移场、应力场和应变场的变化,并根据最终扩张压力计算出沉桩时的桩端阻力,可作为压桩力的估算。
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In chapter 4, on the basis of academic analysis, an integrated experimentation project is designed, then experiments on eight electrodes respectively including hemisphere、ring、reticulation etc,and gains curves of diversified parameters with increase of current electrode, compares them with parameters of hemisphere electrode.
在第四章,文章以上一章的理论计算为基础设计了完整的模拟试验方案,然后对半球形、环形、棒形、网状、放射形等八种形状的电极分别进行试验,通过整理试验数据得出电流极数目增加时各组参数的变化曲线,分析曲线并将各参数的试验值与半球电极的理论值进行对比。
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Mona. Looking back toward the copied monuments of the old Earth, the copied statio n dome shining on the copied Tycho rim, I saw a dark-maned lion striding acr oss the valley toward the pool where the elephants had drunk.
回首望着那些仿制的古代地球建筑,在仿制Tycho环形山上闪闪发光的仿制半球形基地,我看见一只黑鬃毛的狮子大步走向大象刚才喝过的那个池塘,三只较小的母狮跟着它。
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Application and development of platelet transpiration cooling technology in LRE;2. The Computation and Analysis of Heat Transfer of Platelet Cooled Microchannel on the High Temperature and High Pressure Gas Wall;3. Physical-mathematic model is built for the process of evaporation and combustion of the two interactive arbitrary size semisphere pearly transpiration droplets in platelet hole structure under micro-gravity condition.
针对微重力条件下层板孔隙结构中两个相邻任意尺寸半球形珠状发汗的蒸发与燃烧过程,建立了相应的数学物理模型;在双球坐标系中求解分子扩散传质偏微分方程,得到发汗液珠的分子扩散组分分布的解析解和扩散速率表达式;分析得到在常温、高温条件下蒸发以及燃烧状态下发汗液珠的相互作用因子式,计算了相互作用的发汗液珠在不同条件下的发汗蒸发量以及变化趋势。
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The Erigonidium graminicola, Chrysopa septempunctata, Tetragnathidae and Tromobidiidae had high overlap grad with Aphis gossypii were its main natural enemies.(7)Investigations on the spatial construction and distribution of Aphis gossypii and Erigonidium graminicola at different period from 2002.4 to 2002.11. The results indicated that the semivariogram of them could be described by spherical model.
结果表明:从 2002年 4月至 2002年 11月,棉蚜种群和草间小黑蛛种群半变异拟合函数均为球形,即表明二者空间分布均为聚集型:棉蚜变程为7.33叶2.4几草间小黑蛛变程为6.47-20.88,表明二者可在相近的范围内形成聚集区,草间小黑蛛种群对棉蚜种群在空间位置上有追随效应。
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A few years later Keeling observed a second cycle: a hemispherical seasonal cycle of CO2, low in summer and peaking in the winter for the same reason CO2 peaks at night: no greens at work to eat it.
几年后基林观察到了二氧化碳的第二个循环特征:二氧化碳的半球形季节循环,浓度在夏天最低,在冬天达到高峰,和二氧化碳的浓度在晚上达到高峰值的原理一样,没有绿叶的光合作用消耗二氧化碳。
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Ovary obovoid, 1-locular with 1 to several ovules; style very short, apex 2-fid.
子房倒卵球形,1室的具1到数个胚珠;花柱非常短,先端半裂。
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Combining the previous research on the pollen morphology, the present study indicated that: the plants of Stachyurus shared the common characters in pollen morphology and exine ultrastructure.
结果表明:旌节花属植物花粉形态的共同特征是:花粉粒球形或近球形,三孔沟;外壁具穴状纹饰,穴较细小;外壁内壁分层明显,容易区分,覆盖层光滑,几无附属物,柱状层明显,穿孔较少,不形成半覆盖层。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。