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The technical problems, about shortage of separation distance, the feasibility of high-rise polymerization factory building, the fire separation and explosion-proof design of polymerization factory building, the selecting and arrangement of water spraying extinguishing system nozzle, the establishment of deluge system valve, and the essentiality of water spraying extinguishing system which is to be established to protect the VCM gasholder, the positioning of water curtain settled under the space which connect the PVC pack house and pack department and how long the system continue operate? The selecting and the quantity of fire extinguishing agent about gas extinguishing system, which will be used in the new 35KV switch station and some rooms including cabinet room, primary control room, UPS room, voltage changer room, belong to new polymerization power panel and UPS station. Designing the model of power supply and distribution for fire-fighting and designing the hardware organization, software, model of data transmission and fire gang control logic programmer about automatic fire alarm system. Making certain the grade of release source point in the fire or explosive atmosphere and delimiting different grade explosion-proof space. Selecting correct explosion-proof construction of electrical apparatus and delimiting the class of building lightning protection, putting forth the concert steps to deal with thunder stroke and electrostatic discharge and so on, have been deeply researched in the process of designing and then the concert steps to deal with them have been putted forth.

针对设计中遇到的防火间距不足、聚合厂房可否采用高层厂房、聚合厂房的防火分隔和防爆设计、喷雾灭火系统的喷头选型和布置、雨淋阀组设置、VCM气柜是否需要设置喷雾灭火系统、PVC仓库与包装车间相通处幕带的布置和系统工作时间的确定、新建35kV开关站和聚合配电及DCS机柜间内的机柜间、主控室、UPS间、变压器室等处设置的气体灭火系统选型和灭火剂用量确定、消防供配电方式、火灾自动报警系统的硬件结构、软件设计、数据传输方式及联动控制设计中的逻辑编程、爆炸和火灾危险环境危险释放源等级确定和防爆区域等级范围的划分、爆炸危险区域电气设备的防爆结构选型、建、构筑物的防雷类别划分及采取的防雷、防静电措施等具体工程技术问题在深入分析研究后,提出了相应的解决措施。

The hydrothermal behavior of various types of alumina was investigated by means of XRD,which were derived from calcination of gibbsite,bayerite and nordstrandite at temperatures below 1000℃ and normal pressures or in vacuo.

用XRD方法研究了α-三铝石在常压及真空中1000℃以下的脱产物和湃铝石/诺铝石在常压1000℃以下的脱产物,经170℃热处理和自身压力条件下的晶相变化。

The fish needs water not only, and need the fresh water with ceaseless many complement, goluptious water.

鱼不仅需要,而且需要不断补充大量的新鲜的,可口的

With the development of modern science, all kinds of pedestal platforms must be more precise . However, in the gradienter checking, the capability of the current optics quadrant instruments can not adapt to some of the pedestal platforms entirely, especially to some pedestal platforms on the ships (such as: naval ships).

随着现代科技的发展,人们对于各种基座平台的平度精度要求越来越高,而现有光学象限仪已不能完全满足基座平台平度的检测,特别是一些舰船上的基座平台,对于平度精度的要求很高。

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,使汽通量辐合加强,垂直气流增大,中低层云增多,导致雪撞冻过冷云增多,促使了雨撞冻雪转化为霰和霰干增长过程的加强,霰融化为雨增多,低层雨碰并云加强,冷云过程得到增强。

Water-insoluble excipients are also used, and that might cause a feeling of grittiness .

我国的技术要求未对处方中辅料的溶性进行限制,实际申报中一般也多采用溶性较好的辅料,但也有的申报资料采用不溶性的辅料,这可能是造成终产品服用时有沙砾感的一个原因。

Main creative points of the thesis are as following:1. It is the first time to apply 2-D and 3-D turbulent model of the air-water two phases flow to the study on hydraulic properties of groyne. It makes description of the turbulent flow field to be possible precisely. This offers a more accurate method to determine the water surface in channel improvement.2. Based on the results of experiment and simulation for 3-D turbulent model of air-water two phases flow, a new formula to compute the height of damming is built.3. Based on the 2-D mode and the formula to compute the height of damming, the subdivision method of 2-D computation for water surface at upstream and downstream.

本文的创新工作主要是:首次将三维气两相流紊流数学模型应用于丁坝动力学特性研究,使丁坝附近流场和紊动场的精细描述成为可能,为航道整治中面线确定提供了一个更为准确的方法;(2)基于槽实验和三维气两相流紊流数学模型数值模拟结果,建立了新的丁坝前奎高度计算公式;(3)基于上述奎高度计算公式和本文二维面计算数学模型,首次提出了丁坝上下游二维面分段计算方法。

When the amount of water is fixed, GTE reduces with the increasing of water-cement ratio and increases when cement content is fixed. At first, the GTE changes dramatically, but 28 days later, it approaches a stable value.

灰质量比的影响则取决于泥用量和用量的相对关系,当用量一定时,热膨胀系数随灰质量比的增大而降低;当泥用量一定时,热膨胀系数随灰质量比的增大而升高。

According to Einstein's theory, if the temperature of 1 gram of 0 ℃ water, heated to 100 ℃ water absorption heat of the 100 card, then the quality of water has also increased.

按照爱因斯坦的理论,如果把1克温度为0℃的,加热到100℃吸收了100卡的热量,这时的质量也相应增加了。

Single factor test was employed to investigate some factors effecting the compressive strength of hydratedα-plaster of Paris which was made by Aqueous Salt Solution Method in atmospheric pressure such as crystal modifiers,aqueous salt solution,emperature of water to washα-hemihydrate gypsum powder,product drying temperature,product grain size.

采用单因素实验考察了媒晶剂、盐介质、洗涤温度、产品干燥温度、产品粒度等因素对常压盐溶液法制备α-半石膏的抗压强度的影响,实验结果表明:当媒晶剂为柠檬酸钠与Al3 +等的复合物(占盐溶液的质量百分比为1.0 %)、盐介质为15 %的KCl溶液、洗涤温度在98℃以上、产品干燥温度为110 - 130℃、产品粒度控制在7- 4 μm时,产品抗压强度可达4 4MPa

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推荐网络例句

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场,你等着挨绳子吧!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。