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The results obtained by electron microscopic observation show that the supercoiled pUC18 DNA adopts a doughnut-like solenoidal structure with outside diameter about 43.8 nm and inside diameter about 2.0 nm in ammonium acetate-H2O medium.

观察结果显示：在疏水性的甲酰胺-水展开系统中，DNA采取通常的互缠式结构；在含有1.5 mmol/L醋酸铵的水介质中制备的超螺旋DNA标本，DNA采取线圈型结构，测得pUC18 DNA分子这种结构的外直径约为43.8 nm，内直径约为2 nm。

With the increasing of undercooling, the mean crystal diameter of supercooled solidification microstructures shows a variation from coarse to fine, then fine to coarse, and finally fine again. The coarse crystals are developed crystals, while the fine crystals are spherical crystals with a mean diameter about 50μm.

2随着过冷度的增加，深过冷凝固的微观组织的晶粒直径呈现出"粗—细—粗—细"的变化规律，粗晶为发达的等轴枝晶，细晶则为直径约50μm的球晶。

The results showed the morphology of AMMN was mostly spherical and well-distributed, the mean diameter of the nanoparticles was 15 nm and the diameter ranged from 10~20 am and its Zeta potential was about +29.3 mV. These nanoparticles had tremendous durability in acid solution at pH 2.0 while the untreated particles are corroded in acid solution.

结果显示，精氨酸修饰的磁性纳米颗粒均匀，分散性好，大多呈圆球型，平均粒径为15 nm，粒径范围10~20 nm，其Zeta电位为＋29.3 mV；多层修饰的纳米磁粒在pH 2.0的酸中具有很好的耐酸性能，而未处理的纳米粒子在酸溶液中发生了溶解。

In this paper, based on nonlinear FEA software ANSYS/LS-DYNA, 3D dynamic simulation models of eighteen-type tubes for backward spinning was established. This paper not only obtained spinning force of tube backward spinning but also obtained the spinning force curves varying with the different reducer ratio, feeds, fillet radius for spinning roller, forming angle and diameter of spinning roller, and diameter blank inner.

以大型非线性有限元软件ANSYS/LS-DYNA为分析平台，通过对18种几何尺寸和参数不同的筒形件三旋轮强力反旋旋压过程的三维动态模拟，得到了它们的旋压力以及旋压力随不同减薄率，旋轮进给量，旋轮圆角半径，旋轮成形角，旋轮直径和毛坯内径的变化曲线。

So increased age and inner diameter of portal were independent risk factors, increased inner diameter of splenetic vein was protective factor for prediction of EGVB among patients with LC.

故PV增宽、年龄增大是判断肝硬化患者EGVB的重要指标，而SV增宽是其保护性因素。

Results displaied age (OR=1.2, 95%CI 1.1-1.3, P=0.006) and width of inner diameter of portal (OR=4.7, 95%CI 1.5-14.6, P=0.008) were independent risk factors for EGVB. However, the width of inner diameter of splenetic vein (OR=0.4, 95%CI 0.2-0.9, P=0.036) was protective factor for EGVB.

结果显示年龄、PV增宽是EGVB的危险因素(P=0.006、0.008)，OR值为1.179、4.649，95%CI值为(1.049， 1.324)，(1.487， 14.599)，而SV增宽是EGVB的保护性因素(P=0.036)，DR值为0.423，95%CI值为(0.190，0.944)。

The speed of the linear motor can be increased or decreased when the machine is spooling larger-diameter or smaller-diameter wire.

速度直线电机，可以增加或减少时，机纱较大直径或小直径钢丝。

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产品系列有：玻璃仪器，玻璃工艺品，玻璃管，玻棒；玻璃试管系列有：烧瓶，容量瓶，量筒，标准磨口仪器；玻璃工艺品系列有：烛台，油灯，灯罩，灯管，花瓶，爱情温度计，圣诞球，铃铛，天使，烟斗，水烟壶，阿拉伯水烟袋，沙漏，计时沙漏，玻璃耐热茶壶，茶杯，茶海；高硼硅玻璃管系列有：外径3—300mm，壁厚0.6—1mm，玻璃棒外径系列有：3—40mm，彩色棒3—20mm 欢迎国内外客户来电洽谈！

The experimental results showed that the diameter of orifice had a great effect on the lower limit of the hung-up regime but not on the upper limit. However, the stagnant height in hopper, the angle of hopper, the length and diameter of standpipe had influence on the upper limit but not the lower limit.

实验结果表明：立管底部孔口大小对于悬料区的下限有影响，而对上限无影响；相反，漏斗中的物料高度、漏斗的锥度、立管长度和立管直径对悬料区的操作有很大影响。

By using shape analysis,stereoscopy and moment of image,a number of eigenquantumwere extracted,such as radial diameter,tangential diameter,length and area of lumen,complexof cell,comers of edge and convex-concave properties.At the same time,the algorithm ofextraction and statistical analytic methods of pattern features were put forward.

利用形态分析、体视学及图像的矩来提取如早、晚材细胞的径向、弦向直径、管胞长度、面积、密质度及边缘的角、凹凸性等特征量，并提出了这些模式特征的提取算法和统计分析方法。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。