水冷的

The reason of white band formation in the solidified shell in the mold has been studied by means of water modeling test and the analysis of the solidified microstructure of practical CC slab an.

为了定量把握结晶器中的钢水流动、钢水过热度及结晶器传热阻力对初期凝固坯壳的凝固不均一的影响，利用水冷铜板的浸渍实验，测定了各种铸造条件下的凝固坯壳厚度、凝固不均一度及树枝晶偏角；利用水力模型实验，并对实机铸坯的凝固组织分析，EPMA对负偏析带的线分析，得出了在结晶器中凝固坯壳上负偏析带的产生原因。

The results show that 5% nucleating agent,twelve-hydrated disodium hydrogen phosphate,could reduce the supercooling degree of acetate hydroxide trihydrate to some extent but the supercooling degree was still large.However,the supercooling degree of sodium acetate trihydrate could decrease clearly by adding 3% thickener gelatin and 5% twelve-hydrated disodium hydrogen phosphate.

实验结果表明，质量百分比为5%的成核剂十二水磷酸氢二钠能一定程度上抑制无机水合盐三水醋酸钠的过冷度，但其过冷度仍然较大；使用质量百分比5%的十二水磷酸氢二钠和质量百分比3%的增稠剂明胶做添加剂后，三水醋酸钠的过冷性能得到明显改善。

Terrain heightened can enhance blocking effect, which lead to strengthen water vapor flux divergence and vertical convection, and cloud water increases but centralizes in the middle-low level. This change intensify accretion of snow by collecting more supercooled cloud water, and rain water converts into graupel by collecting more snow, and dry growth of graupel increase at the same time. Rain water augment because of more graupel melting, and rain water continue to increase by collecting cloud water in the low level.

地形高度增加后，阻挡作用加强，使水汽通量辐合加强，垂直气流增大，中低层云水增多，导致雪撞冻过冷云水增多，促使了雨水撞冻雪转化为霰和霰干增长过程的加强，霰融化为雨水增多，低层雨水碰并云水加强，冷云过程得到增强。

Takes several energy saving measures for air conditioning system, such as large capacity centrifugal chillers working with variable frequency small capacity chillers, variable frequency and variable flow control on secondary pump water systems, cooling tower for four-pipe water system in winter, fan-coil unit for commercial peripheral zones and all-air systems for interior zones, variable frequency control on supply and exhaust air fans,...

采用了多项空调节能措施：大冷量离心冷水机组搭配变频小冷量机组，二次泵变频变流量空调水系统，四管制风机盘管冬季用冷却塔换冷供冷设计，商业外区风机盘管、内区全空气空调系统，送风机、排风机变频控制，过渡季、冬季利用室外新风通风降温的焓值控制设计。

The driver consists of magnetostrictive rod, front magnetic pole end cap, back magnetic pole end cap, exciting winding, micro displacement output head, casing, fixed end cap, front end cap, spring, winding tap, flat spiral pipe, water inlet pipe and water outlet pipe. The water cooler of the present invention is formed through inserting one end of some metal pipe into positioning hole of spindle, installing rolling tool onto tool carrier, adjusting the lathe to the pitch of the flat spiral pipe and starting the lathe to complete the extruding formation of the flat spiral pipe.

本发明的驱动器包括有磁致伸缩棒(7)，前磁极端盖(3)，后磁极端盖(10)，励磁线圈(5)，微位移输出头(1)，壳体(12)，固定端盖(9)、前端盖(2)，弹簧(13)，及线圈抽头(11)，螺旋扁管(6)，入水管(8)和出水管(4)；本发明的水冷装置的成型方法为把金属圆管的一端插入芯轴(18)的定位孔(23)中，将滚压工具(20)安装在刀架上，调整车床的加工螺距与螺旋扁管(6)的螺距相等，启动车床，完成整个螺旋扁管的挤压成型。

Thirdly, according to the development of the frozen soil, the coupling model of single freezing pipe of axial symmetry of temperature field, stress field and moisture migration is put forward firstly. Then, by means of the progressing principle of potential field, the coupling model of temperature field, stress field and moisture migration which is under the condition of the multi-freezing pipes is extended. At last, the energy balance equation, stress balance equation, quality balance equation, geometric equation, physical equation, initial and boundary conditions etc are adopted to give the analytic solution to the problem of plane axial symmetry of single freezing pipe.

第三，在对室内试验和现场实测结果研究的基础上，分析了土体冻结过程中温度场、应力场、水分场耦合原理，并按照冻土体形成发展过程，首先建立了单一冷源冻结轴对称温度、应力、水分场耦合模型；接着利用势场的迭加原理，将单一冷源情况的三场耦合问题推广到多冷源情况的三场耦合；最后根据能量守恒平衡方程、应力平衡方程、质量守恒平衡方程、几何方程、物理方程、初始及边界条件，解出了单一冷源平面轴对称问题的解析解。

For the demands of precooling and cold storage for keeping fruits, vegetables and flowers fresh, a new humid-cool system of water drenching air-cooler was designed based on the analysis on the characteristic of the current type of ice water humid-cool system and the synthesis performance were tested.

针对果蔬、花卉等的预冷、冷藏湿冷保鲜技术过程要求，在综合分析了目前流行的冰水湿冷系统特点的基础上，设计了淋水式冷风机湿冷系统，测试了该系统的综合性能。

Based on solidification theory and analysis of process of Aluminum alloy Direct Chill casting, the control system of DC casting for big size billet has been designed. For improving the quality of billet-optimized control strategy of cooling water must be determined to eliminate the instability of the traditional feedforward control, PID control and cascade control have been introduced.

通过对铝合金DC铸造工艺过程的分析，建立了铝合金DC铸造的控制系统；在分析DC铸造铸锭结晶凝固原理的基础上，完成了冷却水量自动控制的系统设计，并进行了控制策略的选择；基于对铝合金直接水冷铸造，DC凝固原理和工艺过程的分析，本文提出了大尺寸铝合金圆锭铸造的控制系统设计方案。

Pan bottom consists of dry and wet surfaces.When heated,the pan produces vapor to sterilize.Reaching the cold bottom of condenser,vapor will be condensed into water and drained back into pan.When the temperature in condenser reaches 90℃,vapor will be released from the vent devised with a whistle alarm.

底锅分为干表面和湿表面二部分，加热时可产生过热的高温蒸汽进行灭菌，当蒸汽进入冷凝器底部时，则遇冷被冷凝成水，经回水管又流回底锅，水———汽在锅内闭路循环，直至冷凝器中水温达到90℃以上时为止，此时蒸汽则通过出气管外逸，吹动哨片发出响声报警。

This truck adopts an inverter-driven AC electric drive system and an AC motor operated by the truck's diesel engine. A water-cooled inverter equipped with the latest high-voltage, large capacity IGBT to offer higher performance is also adopted, and thus contributes to highly efficient

该产品采用了以柴油机为动力源，通过变频器和交流马达获取驱动力的交流电气式驱动系统，应用了最新的高压大容量 IGBT 的水冷变频器，取得了更高的性能，该产品可望能为矿山运营的高效率化和节能做出贡献。

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