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Media Help Everyday we are exposed to the steam often divided into two, one, the boiler steam - saturated steam 2, thermal power plants out of steam - superheated steam 1, a relatively stable temperature and pressure saturated steam, temperature lower than 250 ℃, working pressure lower than 1.6Mpa 2, superheated steam temperature and pressure changes of a high base temperature up to 400 ℃, working pressure is lower than 4.0Mpa For the first steam, we usually use soft sealing steam solenoid valve as follows: Structural characteristics This valve is a valve and Balance valves main valve by the two vice components with the second open valve Pilot solenoid valve Heat: electromagnetic part, some with special high temperature seals and sealing materials, electrical materials, and apply a variety of insulation measures Wear: selection and reasonable Globe Valves guidance suite valve cup and clever use of fluid lubrication, reduce wear, increase life expectancy Resistance to condensation: condensation of steam pipeline valve on the steam water is an important factor in action, the valve will not affect the condensation water Other uses - soft sealing steam solenoid valve This series solenoid valve can Safety valves be widely used in textile, printing, chemicals, plastics, rubber, pharmaceutical, food, building materials, machinery, electronics, surface treatment and research sectors and bathroom, dining room, air conditioning automatic control system.

介质说明日常生活中我们接触到的蒸汽常分为两种，1、锅炉蒸汽-饱和蒸汽 2、热电厂出来的蒸汽-过热蒸汽 1、饱和蒸汽温度压力相对稳定，电动阀门执行器温度低于250℃，工作压力低于1.6Mpa 2、过热蒸汽温度压力变化基数较大温度最高可达400℃以上，工作压力则低于4.0Mpa 对于第一种蒸汽，我们通常会选用氧气专用阀、铜阀门软密封的蒸汽电磁阀如下：结构特点本阀是由副阀和主阀两大部件构成的先导式二次开阀的电磁阀耐热：电磁部分、密封件部分用特种耐高温电工材料和密封材料，并应用了各种隔热措施耐磨：选材合理，电站阀门阀杯和导向套间巧妙地利用流体的润滑作用，减少磨损，提高寿命耐冷凝：蒸汽管道的冷凝水是影响蒸汽电磁阀动作的重要因素，本阀则不受冷凝水影响其他用途-软密封蒸汽电磁阀本系列电磁阀还可广泛地应用平衡阀纺织、印刷、化工、塑料、橡胶、制药、食品、建材、机械、电器、表面处理和科研部门以及浴室、食堂、空调等自控系统。

METHODS: Open chest operation was performed on the anesthetized rats to take out their hearts. The remaining blood was washed, and the large vessels, atriums and right ventricle were removed. The left myocardium was cut into two parts, then put in the DMEM tube containing 600 mL/L of glycerol, frozen at 4℃ for 30 minutes, at -20℃ for 30 minutes, and at80℃ for 30 minutes. Then they were stored in the liquid nitrogen at196℃.

麻醉大鼠开胸后，迅速取出心脏，置于冷Krebs-Henseleit液中，洗去残存的血液，弃去大血管、心房和右心室，将左心室肌剪成两块，然后置于含600 mL/L甘油的DMEM的冻存管中，程序冷冻，即4℃30min，-20℃30 min，-80℃30 min，最后保存于-196℃的液氮中备用。

For the coarsest scale there are fewer local minima and further apart from each other. Thus, at the coarsest scale linearized methods can get closer to the neighborhood of the global minimum, and its final result is implemented as an initial model of the inverse problem of the second coarsest scale.

大尺度上反问题的目标函数局部极小少而且互相分得很开，因而用常规的反演方法可以较容易地收敛到全局极小的邻域内；将大尺度的解当作次一级尺度反问题的初始模型，再进行反演。

The large-leaved rhubarb and cabbage plants slept too, their broad limp surfaces hanging in the sun like half-closed umbrellas.

大叶子的大黄和卷心菜也都睡着了，它们那些宽阔发蔫的叶片在日光下低垂，好象半开半闭的

The large-leaved rhubarb and cabbage plants slept too , their broad limp surfaces hanging in the sun

大叶子的大黄和卷心菜也都睡着了，它们那些宽阔发蔫的叶片在日光下低垂，好象半开半闭的

The large-leaved rhubarb and cabbage plants slept too, their broad limp surfaces hanging in the sun like half-closed umbrellas

大叶子的大黄和卷心菜也都睡着了，它们那些宽阔发蔫的叶片在日光下低垂，好像半开半闭的伞。

However, Shanghai has regained the title of China's largest economic center and larges harbor of the world after China's reform and opening-up.

改革开后的1990年，上海又开始重现往日的繁华，成为了今日中国最大的经济中心和全球最大的贸易港口。

He gulped great lungfuls of cold night air and opened his streaming eyes.

他大口大口地吸着夜晚寒冷的空气，睁开流泪的双眼。

He has put a premium on the "inevitability factor"—swatting aside Democratic doubters who worry that she is too polarising and cluster-bombing turncoats like David Geffen who back Barack Obama.

他重视&必然性因素&，大力挡开持怀疑态度的民主党人（他们担心希拉里会产生过大的分裂影响）和大卫·格芬(David Geffen，现倒戈支持巴拉克·奥巴马)等集束轰炸的叛变者。

Lu was going to explore the truth bent suddenly see a large locust nearby, two large opening and die together, eating quickly Leaves of Grass.

鲁班正想俯身探究其中的道理，忽然看到近处有一只大蝗虫，两枚大板牙一开一合，很快吃着草叶。

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。