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After anesthesia, the guinea pigs'scalp surface was exposed and two stainless screws (5 mm length and 1.2 mm diameter) were implanted at 6 mm in front of and 10 mm behind bregma, as reference electrode and recording electrode. In the middle, a third stainless screw was implanted as ground electrode. 3 days later, awaked guinea pigs were fixed in multifunctional head-body apparatus. RETI-port system was used to record PVEP of control group and experiment group.

麻醉后，在前囟前6 mm、后10 mm及矢状缝正中处钻孔，均植入长5 mm、直径1.2 mm的不锈钢螺钉作为参考电极、记录电极和地极。3 d后，将清醒状态下的豚鼠固定于自制多功能头身一体化固定台面上，采用RET I-port系统(Roland Consult，德国)分别记录对照组和实验组图形视觉诱发电位的变化。

The choice for material of iron core, all the structure design and the method of collimation for the magnet were also described. Simulation results of Opera show that when the length of the core is 220 mm, the effective magnetic length is about 302 mm and the maximal magnetic density is around 0.215 T at four interior angles. Corresponding field uniformity is within 0.8% in the area of 133 mm��200 mm.

根据磁铁的设计指标，给出了磁铁设计要求铁芯材料选择方法、整体的结构设计以及如何对磁铁进行定位和准直，并采用Opera程序进行模拟计算，结果表明：当铁芯长度为220 mm时，磁有效长度大约为302 mm；磁感应密度最大的地方在4个内角上，约为0.215 T；在133 mm×200 mm的平面范围内，磁场均匀性优于±0.8%。

As an example, we designed a new double telecentricity projection lens with NA=0.42, magnification M=-1/5, field size 15 mm��15 mm (21.2 mm diametre) and conjugate distance 602 mm.

设计了一种新的双远心投影物镜，其数值孔径NA=0.42，放大倍率M=-1/5，像场尺寸15 mm×15 mm(直径21.2 mm)，共轭距L=602 mm。

For the axicons with 20 mm radius, 10-2 cone angle, when using incident spherical wave whose radius of curvature varius from 1200 mm to 1400 mm, the focal length increases from 200 mm to 120 mm and the lateral intensity distribution increases only 15μm.

对于半径20 mm，锥角θ=1×10－2的圆锥透镜，采用曲率半径为1200~1400 mm的球面入射波，可扩展焦深200 mm到120 mm，光强的均匀性有明显改善，横向场能量分布形状改变量不超过15 μm，完全达到应用要求。

Results: For normal living body. extensor hallucis longus was about (44±4.26)mm lateral to tibialis anterior muscle at the transverse striation of ankle,(2.00±2.22)mm lateral to the middle point of tarsometatarsal joint,(1.32±1.46)mm lateral to the middle point of metatarsophalangeal joint, and it inserted into the center of the base of distal phalanx with the range of (2.22±2.42) mm.

结果：正常长伸肌腱的位置在踝横纹处位于胫骨前肌外侧(9.44±4.26)mm，在跖附关节中点外侧(2.00±2.22)mm，跖趾关节中点外侧(1.32±1.46)mm，止点位于末节趾骨基底中点(2.22±2.42)mm范围内，长屈肌腱在跖趾关节中点外侧(0.44±2.42)mm。

While of the pulvinar,superorinftrior diameter (10.09 mm),anteriorposteror diameter(9.55 mm),interiorlateral(7.14 mm).

丘脑总体前后径(29.48 mm)＞上下径(18.82 mm)＞左右径(13.91 mm)，丘脑枕总体上下径(10.09 mm)＞前后径(9.55 mm)＞左右径(7.14 mm)。

The aortic diameter change rates were (-0.2±1.4) mm/year and (-0.18±0.98) mm/year in aortic diameter0 mm group and≥40 mm group, respectively. There was no significant difference between the two groups. The ascending aortic diameter change rates were (0.8±1.6) mm/year in BAV group, and (-0.3±1.5) mm/year in TAV group. The ascending aortic diameter of patients in BAV group enlarged continuously following AVR.

在升主动脉直径0mm组和≥40mm组中，升主动脉直径的变化率分别为(-0.2±1.4)mm/年和(-0.18±0.98)mm/年，两组之间无显著性差异；二叶主动脉瓣组和三叶主动脉瓣组升主动脉直径的变化率分别为(0.8±1.6)mm/年和(-0.3±1.5)mm/年，二叶主动脉瓣组病人的升主动脉直径在主动脉瓣置换术后仍继续扩大。

Results The system offers 70 mm��70 mm��70 mm measurement scope, 0.01 mm resoling power ＜0.1 mm mean deviation, 25mins for single cast scanning.

结果 该系统测量范围为70 mm×70 mm×70 mm，测量精度为0.01 mm，平均测量误差＜0.1 mm，单颌模型扫描时间＜25分钟。

Results:The average length,width and thickness of the left lobes of thymuses were 60.7 mm,16.7 mm and 5.5 mm respectively,and those of the right lobes were 80.3 mm,18.3 mm and 4.9 mm respectively.

结果：胸腺左叶和右叶长、宽、厚度分别为：60.7、16.7、5.5 mm和80.3、18.6、4.9 mm，胸腺上极伸至颈部的占93%(14例)，左叶上极伸至颈部的长为29.5 mm；右叶长度为25.1 mm。

It is proposed that domestic post insulator of Ⅲpollution class shall have rated mechanical bending strength of 10kN and 16kN, height of (10 000～12 000)mm, at least 8 800mm if it is limited by processing equipment, core diameter of (280～320)mm, creepage distance of (27 500～33 275)mm, and porcelain surface coating with PRTV or RTV.

根据我国1000kV交流输变电工程对高压支柱绝缘子和空心绝缘子技术参数的要求，综合分析国外成功的制造经验、技术参数、500kV运行经验及国内制造能力，提出了国内支柱瓷绝缘子和空心绝缘子在按Ⅲ级污秽等级设计中，额定机械弯曲破坏负荷为10kN和16kN的支柱瓷绝缘子的高度应在(10000～120000)mm之间，如受制造设备限制，高度至少不小于8800mm，主体直径为(280～320)mm，爬电距离为(27500～33275)mm，并且应在其瓷表面涂PRTV、RTV；空心绝缘子的长度为(11000～13000)mm，最低高度不应小于9600mm，主体直径为(900～1200)mm，爬电距离为(40000～50000)mm。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。