真空的

The mold is made of the silicone pattern layer with a quartz supporting plate. The parameters in a vacuum casting process and a hardening process for composing the silicone are optimized to improve the physical properties of the mold to keep adequate demold and pattern accuracy.

分析了硅橡胶模具制作工艺中真空辅助浇铸的成型过程，以及交联固化反应过程的各个工艺参数对硅橡胶模具性能的影响，通过大量实验，具体分析了硅橡胶单体和固化剂配比、浇铸真空压力、固化温度及固化时间等工艺参数，并由此得到了优化的硅橡胶固化工艺参数，提高了硅橡胶模具的物理性能。

Factory covers an area of 65,000 m2, construction area of 32,000 m2. After "75" and the "Eighth Five-Year Plan" period of technological innovation, and original value of fixed assets 93,770,000 yuan. Owned companies from Germany Georg introduction of 400mm and 600mm silicon shear production line and ripple tank production lines imported from Italy, thin-type winding machine and high-voltage winding machine, imported from Germany coil epoxy resin vacuum casting equipment, from Japan the introduction of numerical control punch, equipped with a 80m3 vacuum drying oven, as well as from Switzerland, the impact of the introduction of partial discharge test equipment and test instrument, such as Taiwan, a total of twelve of advanced equipment.

拥有从德国乔格公司引进的400mm和600mm硅钢片剪切生产线和波纹油箱生产线、从意大利引进的薄式绕线机和高压绕线机、从德国引进的环氧树脂线圈真空浇注设备、从日本引进的数控冲床、装备有80m3真空干燥炉以及从瑞士引进的冲击试验设备和局部放电测试仪等共计十二台先进设备。

Although it is possible that new attempts to estimate the vacuum energy density may yield just the right amount to explain cosmic acceleration, many theorists believe that a correct calculation, incorporating a new symmetry principle, will lead to the conclusion that the energy associated with the quantum vacuum is zero.

虽然新的估算有可能得到能解释加速膨胀现象的真空能量密度，但多数科学家相信，经过正确的计算再配上新的对称性原理，得到的量子真空能量将会是零。

Company not only has the high-volume processing capacity, is that it can be more difficult to bear all kinds of vacuum coating and ion implantation technology development, and provide technology transfer and technical services such as full-service The company has advanced three vacuum equipment, ultrasonic cleaning equipment, deionized water equipment related production equipment, fully meet the customer's production requirements.

公司不仅具有大批量加工生产能力，更主要的是能承担各类高难度的真空镀膜及离子注入技术的开发，并提供技术转让和技术服务等全方位服务公司拥有先进的真空设备三台、超声波清洗设备、去离子水设备等相关配套生产设备，完全可以满足客户的生产要求。

The novel vacuum furnace is employed in laboratory study. Compared with atmosphere magnesium carbothermic reduction furnace, this new one has the merits of high automation, easy manipulation and fine safety. Vacuum coking, vacuum carbothermic reduction process and magnesium vapory condensation process can be carried out in a furnace.

小型实验结果证明：还原温度升高，还原时间延长，氧化镁还原率增大，添加适量的氟化物对还原反应有促进作用；还原过程中真空度随时间的变化具有规律性，由此可以判断还原反应进行的速度与程度；真空中煤还原氧化镁的条件是：配料时保证C：MgO=3：1，并加入占总料重10％的氟化钙作为催化剂，尽可能的提高反应温度至1500℃以上，保温30～40分钟。

In bud stage of mustards ecotype Xuelihong and Yuanyejie were transformed with in planta vacuum infiltration by an Agrobacterium tumefaciens strain GV3101 carrying hy-gromycin resistance gene. Effects of different factors on transformation frequency with in planta vacuum infiltration were studied.

以蕾期的芥菜生态型雪里蕻和圆叶芥为试材，在携带潮霉素磷酸转移酶标记基因的根癌农杆菌菌株GV3101的介导下，对影响芥菜植株原位真空渗入遗传转化效果的真空渗入时间、根癌农杆菌悬浮孢子的浓度、渗入培养基、感染方式以及根癌农杆菌菌株等进行研究。

Specific products include: vacuum system cream machine, vacuum homogeneous emulsifying machine, mixer, reactor type, such as Cream, washing type, spices class production equipment; automatic aluminum composite hoses and plastic hose pipe production line, the kinds of specification type hose filling Sealing Machine, color filling Sealing Machine, hoses and other hose-type printing press production equipment; have liquid Filling Capping, capping machine, eye drops, oral liquid filling torinese plus spin to build machines and other types of packaging equipment bottle; have all kinds of liquid, cream, powder, granule packaging machine pouch; all kinds of stainless steel conveyor table; water treatment equipment; a variety of specifications for the pipeline system mold; stainless steel Clean Benches, cabinets, aircraft; soap production lines.

具体产品有：真空制膏机、真空均质乳化机、搅拌机、反应釜等膏霜类、洗涤类、调料类的生产设备；全自动铝塑复合软管和塑料软管的制管生产线、各种规格类型软管的灌装封尾机、彩条灌装封尾机、软管印刷机等软管类生产设备；有液体灌装旋盖、轧盖机，眼药水、口服液的灌装加内塞旋盖机等瓶类包装设备；有各类液体、膏霜、粉剂、颗粒的小袋包装机；各类不锈钢输送工作台；水处理设备；各种规格制管线模具；不锈钢超净工作台、柜、架；香皂生产线等。

According to several domestic and foreign earlier works as reference,some technical problems in the design of vacuum systems for external refining equipment of molten steel are discussed,such as how to make certain of the outgassing rate,equivalent conversion of gas loads,selection of capacity of vacuum pump s and energy/power consumption.

本文综合一些国内外有关资料，讨论了钢液炉外精炼设备真空系统设计中的一些技术问题，对放气量的确定、真空系统的气体负荷的等效换算以及真空泵容量的选择和能源消耗等进行了分析。

Functions in a weak external field like the pion or electromagnetic field, which polarizes the otherwise-with-no-Lorentz-structure QCD vacuum, induces new condensates and affects the propagation of quarks and gluons in the vacuum.

外场的存在，将使原来没有 Lorentz 结构的 QCD 真空极化，诱导出一些新的凝聚量，另一方面外场的存在将改变夸克在真空中的传播行为，并且需要增加一些唯象参量。

The methods of extracting and refining tellurium presently were mainly soda roasting,autoclaving in general basic solution,sulfating roasting,oxidative leaching in acid solution, solvent extraction ,emulsion liquid membrane,microbial method,electrorefining,vacuum distillation and zone melting etc.

目前分离提纯碲的方法主要有苏打粉焙烧法、碱性高压浸出法、硫酸化焙烧法、氧化酸浸法、萃取法、液膜法、微生物法、电解精炼法、真空蒸馏法、区熔精炼法等，其中电解精炼法得到的碲的纯度达到99.99%，真空蒸馏碲的纯度达到99.999%，区熔精炼碲的纯度可达99.999995%，本文综述了以上分离提纯碲的方法。

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