导块

The metal mold design nowadopt a form of one mole but six cayities ,this way can improve theefficiency;the mold's joint face is theball's neutral plane,that makes the mold openedconvenient;In the gating,the runner and the riser is the same ,andthis design adopt scum riser,that make sure a better routing andmake sure the casting's feeding;the mold usegravity to lockwasher itself;the core's materialis quartz sand,and spread high tempearature resistant dope on it;Inthe design, same taper in the guide bush of the core box is neededto make sure open the mold easily;The insert blocks of the core boxare made by numercial control processing,this way reduce the costof production; the scale division positioner make sure the samespecification has better interchangeability,also,as all themachining can be finished on the general machine tool,it make thecost low,so it can be spreaded abundant in the medium and minorenterprise;when workout the mold's processingtechnology,this design adopt the rough's two endplane as benchmark,the ball cavities are machined by scale divisionpositioner;then use Autocad,Pro/e to draw planar and threedimension blueprint,use Pro/e to make three-dimensionalanimation.

本次设计的群铸模具采用一模六腔形式，生产效率高；模具分型面选择磨球的中性面，使得分模方便；浇注系统采用浇冒口一体形式和集渣包设计，保证了良好的加工工艺和补缩；锁模方式为重力锁模；砂芯采用石英砂，并在表层涂以耐高温涂料；芯盒导套选择一定的锥度，使取模容易；芯盒镶块运用数控加工，降低了生产成本；分度胎具保证了同种规格模具具有良好的互换性，而且因为所有加工基本都可以在普通机床上完成，生产成本低，可以为中小型企业普遍采用；在加工工艺编制过程中，采用两端面互为基准，球腔用专业夹具加工；Autocad，Pro/e分别制作了模具的二维和三维立体图，并运用Pro/e制作了三维动画演示。

The results showed as follows: 3mg/LBA in differentiation medium was favorable for regeneration of callus; addition of 3mg/LABA, sucrose substituted with maltose, or sucrose partially substituted with mannitol in subculture media improved the status of callus in a degree and enhanced the differentiation frequency; partial desiccation treatment significantly increased the regeneration frequency of callus; addition of AgNO3 or CuSO4 in differentiation medium contributed to plant regeneration , The two resistant calli and fifteen regenerated plants were obtained when the calli of mature embryo of 7001S were infected with Agrobacterium carrying bar and CPTI gene.

结果表明：3mg/LBA对分化有利；继代培养基中加入3mg/LABA，以麦芽糖代替蔗糖，或以甘露醇代替部分蔗糖在一定程度上可以改善愈伤组织状态，提高分化率；干燥处理能明显提高愈伤组织分化率；分化培养中添加一定浓度的AgNO3和CuSO4有利于愈伤组织分化。借助农杆菌介导bar基因和CPTI基因对水稻进行遗传转化，获得2块抗性愈伤组织和15棵再生苗。

The results showed as follows 3mgLBA in differentiation medium was favorable for regeneration of callus; addition of 3mgLABA, sucrose substituted with maltose, or sucrose partially substituted with mannitol in subculture media improved the status of callus in a degree and enhanced the differentiation frequency; partial desiccation treatment significantly increased the regeneration frequency of callus; addition of AgNO3 or CuSO4 in differentiation medium contributed to plant regeneration , The two resistant calli and fifteen regenerated plants were obtained when the calli of mature embryo of 7001S were infected with Agrobacterium carrying bar and CPTI gene.

结果表明：3mgLBA对分化有利；继代培养基中加入3mgLABA，以麦芽糖代替蔗糖，或以甘露醇代替部分蔗糖在一定程度上可以改善愈伤组织状态，提高分化率；干燥处理能明显提高愈伤组织分化率；分化培养中添加一定浓度的AgNO3和CuSO4有利于愈伤组织分化。借助农杆菌介导bar基因和CPTI基因对水稻进行遗传转化，获得2块抗性愈伤组织和15棵再生苗。

A mould with an oblique guide pin scroll box structure was designed for the core pulling in two directions of a mould with two cavities.

采用能解决一模两腔的两面抽芯问题的斜导柱滑块结构的模具结构，设计出电流线圈架注射模模具。

The design and machining technology process of its molding part including the front moulding plate 、 front mould kernel 、 back mould plate 、 back mould kernel 、 back mould set piece 、 incline guide pin 、 slide steatite etc, and the choice and calculation of technology parameters of the impotent part, the design process of extrusion outfit, inject system and other makeup are specified in detail; Test and product have been introduced.

详细地叙述了模具成型零件包括前模板、前模仁、后模板、后模仁、后模镶件、斜导柱、滑块等的设计与加工工艺过程，重要零件的工艺参数的选择与计算，推出机构与浇注系统以及其它结构的设计过程，并对试模与产品缺陷作了介绍。

Through compare, adopt oblique to lead post make mould , Haff piece Move the structure of the mould .

经过比较，采用斜导柱在定模，哈夫块在动模的结构。

Was simultaneously injected into cisterna magna at the second injection blood in the presence of subarachnoid blood. At 2 to 4 days, GFP was expressed in leptomeninges over the brain stem, cortex and cerebral arteries, smooth muscle cells of small vessels were occasionlly transduced. GFP was expressed in adventitia of spastic basilar artery on days 2 (day 5 after first injection blood) after injection 〓, but was undetectable by days 4, transgene was not expressed in medial or intimal layers. The prensence of subarachnoid blood can not prevent access of adenovirus to vessels and transgene expression.

注入腺病毒载体后2天（初次注血第5天）行荧光显微镜、免疫组织化学和RT-PCR检测，结果在颅内大血管如基底动脉的外膜可见外源基因的表达，而外源基因不能转移至血管中膜和内膜，4天时（初次注血第7天）基底动脉的外膜中外源基因表达消失；注入腺病毒载体后2～4天，外源基因可以有效转移至颅底软脑膜细胞，小血管外膜和平滑肌层也可见外源基因的表达，表明蛛网膜下腔内的血凝块不能阻止腺病毒载体介导外源基因转移至颅内血管。

This is due to the different length of nervi spinales while the central conduction time is not related to the length of the nervi sp...

作者认为，MEP的多导记录能减少刺激次数，一次性刺激即能同时获得多块肌的EMP记录；有利于髓内和神经根病变的定位诊断。

The thermal conductivities based on 198 core samples range from 1711 to 36 W/, with an average of 2716±0403 W/.

198块岩芯样品测试结果表明，热导率变化范围在1711～36 W/，平均2716±0403 W/。

Sound enamel surfaces were dematerialized in bacteria model in vitro. QLF was used to analyze the area of lesions, the loss of fluorescence and ΔQ on enamel surfaces after demineralization. Confocal laser scanning microscopy was used to quantify the mineral content after demineralization.

将30个牙釉质块开窗后分为3组，分别使用氟含量1 450 mg/L的氟化钠牙膏、单氟磷酸钠牙膏和无氟牙膏的处理液处理，并在体外恒化器龋病模型中进行脱矿循环，定量光导荧光技术分析病损脱矿后的面积、荧光损失和总荧光损失量，激光扫描共聚焦显微镜分析脱矿后矿物质含量变化。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。