气体的

In this paper studieol the effects of stick-out, welding voltage, and shielding mixed gas on deposition rates.The major factor affecting deposition rates is ascertained.

在理论分析的基础上，对干伸长、焊接电压、混合保护气体的配比成分等因素与熔敷率之间的关系作了大量系统试验，确定了影响熔敷率提高的主要因素，指出阻碍熔敷率提高的核心问题。

The experimental results showed that under the reaction temperature of 80℃,using catalyst 5 % of the mass of turpentine,reaction time of 10 h,turpentine:solvent:assistant:water of 1∶1∶1∶2,the conversion ratio of 90 %,the selection of α-Terpineol production was 64.96 %,and ΔHφf,g and Sφg were estimated as well...

实验结果表明，在反应温度80℃，催化剂用量为松节油质量的5%，反应时间10 h，松节油∶溶剂∶助剂∶水为1∶1∶1∶2时，其α-蒎烯的转化率为90%，生成α-松油醇的选择性为64.96%。并对α-蒎烯和松油醇理想气体的△Hfφ，g、Sgφ进行了估算，为今后的理论研究提供了数据支持。

Based on a mathematical model assuming that dissociation of hydrate in the porous media takes place in constant temperature boundary condition, the analytical temperature distributions in dissociated and undissociated zones were solved, and thermal efficiency and energy efficiency were derived.

将多孔介质中天然气水合物在热力作用下的分解过程看作一个移动边界问题，在求解等温边界条件下水合物地层中分解区和未分解区温度场的基础上，推导出热力法开采水合物过程中开采热效率（用于水合物分解的热量与输入热量之比）和能量效率（开采所得甲烷气体的总热值与输入能量之比）的解析表达式。

In general, large-span cable-stayed and suspension bridges require bridge towers with a length of more than tens or hundreds of meters. Due to the unproportionate slenderness ratio, the bridge tower becomes vulnerable to air and thus easy to be distorted or to vibrate, which will affect the stability of the entire bridge structure. Therefore, it is of great significance to carry out an in-depth research on the force feature of the bridge tower in a flow field.

大跨度的斜拉与悬索桥，往往都需要建造数十米甚至上百米的桥塔，过大的长细比，使得桥塔在流场中受到气体的作用容易发生变形或振动，从而影响了整个桥梁结构的稳定性，因此，深入细致地研究桥塔在流场中的受力特性非常有必要。

An astronomer can examinea galaxy and from its brightness make a guess as to how many stars and how much dusty gas it contains. Yet when we track the movements of galaxies in a self-contained cluster, they move as if galaxy were far heavier than it appear. It's like watching go-carts move as unstoppably as trucks.

尽管天文学家能够对某个星系进行观察并根据其亮度推测它所含恒星的数量和尘埃气体的多少，但是当我们把众多星系作为一个独立存在的整体来观察其运动时就会发现，每个星系运动起来似乎比我们所看到的要重得多，这就像我们看一辆儿童手推车以卡车般巨大、难以阻挡的惯性向前奔驰一样。

The invention comprises that:(1) an injectant containing air is formed and the injectant is injected into a manto (3) through an injection well (2) or a recovery well (1);(2) the pressure of the injection well (2) and the recovery well is kept (1) for a period of time so that the oil and the injectant are mixed into more uniform fluid;(3) the pressure of the injection well (2) and the recovery well (1) is decreased, the pressure of the manto(3) is decreased and the oil-containing mixed fluid is obtained from the recovery well (1) or the injection well (2);(4) the procedure of (1),(2) and (3) is repeated, the pressure fluctuation of the fluid in the manto (3) is realized until the oil recovery rate is less than the economic recovery rate.

本发明包括：①形成包含气体的注入剂，将注入剂通过注入井(2)或采收井(1)注入矿层(3)；②保持注入井(2)和采收井(1)的压力一段时间，使油分和注入剂混合形成比较均匀的流体；③然后降低注入井(2)和采收井(1)的压力，降低矿层(3)压力，并在采收井(1)或者注入井(2)获取含油混合流体；④不断重复步骤①②③，实现矿层(3)中流体的压力波动，直到石油的采收率低于经济开采率为止。

The principles of design,preparation process,the factors effecting on the structure and the development status of synthesis for metallorganic frameworks are discussed.

本文讨论了金属有机骨架材料的设计原理、制备过程、骨架结构的影响因素以及骨架合成的发展状况，总结了金属有机骨架材料在催化剂、气体的储存和分离方面的应用，并对这种新型多功能材料在设计、合成与应用中的广阔前景做了展望。

The peak temperature rise on DX for WX-percussion composition in the two mixture systems was analyzed and discussed by the "topochemistry" principle, and it is proposed that the processes of thermal decomposition are inhibited by azido nitramine and nitroglycerine gases from their evaporation and gasification.

从&局部化学&的观点分析讨论了混合体系DSC分解温度升高的原因，认为WX-击发药的DSC温度升高是分解过程受到挥发或气化的硝化甘油与叠氮硝胺气体的抑制。

The advantages of Fluorphlogopite Mica are: good penetrativity of light and wave; long time operation at the temperature up to 1100°C; anticorruption of strong acid and alkali and nocuous gases; almost no loss in high frequency medium; 2000-time-smaller vacuum deflation at high temperature than inartificial mica while 1000-time-higher body resistance than inartificial mica.

氟晶云母优于其他云母的关键点在于：优秀的光、波透过率；可长期在高达1100℃的高温环境下工作；抗强酸、强碱及有害气体的腐蚀；在高频介质环境下基本没有损耗；高温真空放气量比天然云母小2000倍，体电阻率比天然云母高1000倍。氟晶云母是替代天然云母、聚四氟乙烯、石英玻璃等低性能材料的新型耐高温、高频、绝缘材料。

The global weak entropy solutions" existence and uniqueness of polytropic gas isentropic dynamics equations" general Cauchy problem has been solved. But, to the structure, property, regularity of solutions which has more physics meaning, there are less results now.

多方气体的等熵动力学方程组的一般Cauchy问题整体弱熵解的存在性及唯一性已经获得解决，但是，对于更具有物理意义的解的结构、性态、正则性等问题，已有的研究成果还不多。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。