查询词典 under steam

The heat transfer coefficients of the direct air-cooled condenser under various operating conditions are of the most important basic parameters for the optimal operation of the steam power unit, which can be used to determine the heat transfer capability of the cooling system, and in further, to acquire the influences of the operating parameters and environmental conditions on the exhaust steam pressure.

不同工况下直接空冷机组空冷凝汽器的传热系数，对确定机组冷端的热负荷能力、进而确定环境条件和运行参数与机组排汽压力之间的关系具有重要意义，是进行机组优化运行最重要的基础数据。

The results show that steam injectivity and steam quality have obvious effects on recovery ratio with the steam quality in the lead under the condition of the same injectivity. Analyses of t...

本文介绍了将实际油藏按比例转换为室内模型的相似准则，讨论了原型向模型的转换原则，论述了物理模型实验的流程及模型的制作工艺。

The present invention adopts the technical proposal of adopting ZSM-5 mesoporous molecular sieve raw powder with a silicon-aluminum mol ratio SiO2Al2O3 of 20 to 1000 and a weight percentage of 20 to 100 percent as well as at least one caking agent selected from SiO2, clay and Al2O3 to extrude, tablet or spray into shape; then treating for 1 to 8 hours by 0.1 to 3 mol/l of at least one ammonium liquor from ammonium nitrate, ammonium chloride or ammonium sulphate or 0.1 to 8.5 mol/l of at least one acid liquor from muriatic acid, nitric acid, vitriol or acetic acid under a temperature of 20 to 90 DEG C; then using steam to treat for 2 to 15 hours under the temperature condition of 400 to 700 DEG C; using a liquor of 0.1 to 3mol/l selected from at least one of oxalic acid, citric acid or maleic acid under a temperature condition of 20 to 90 DEG C to dip for 2 to 5 hours to obtain the modified molecular sieve catalyst, thus better solving the problems.

本发明通过采用硅铝比SiO2/Al2O3为20～1000重量百分比计20～100％的ZSM-5介孔分子筛原粉与余量的选自SiO2、粘土或Al2O3中至少一种粘结剂挤条、压片或喷球成型；再经过0.1～3摩尔/升选自硝酸铵、氯化铵或硫酸铵中的至少一种铵溶液或0.1～8.5摩尔/升选自盐酸、硝酸、硫酸或乙酸中的至少一种酸溶液在温度20～90℃下处理1～8小时；然后在温度为400～700℃条件下水蒸汽处理2～15小时；再用0.1～3摩尔/升选自草酸、柠檬酸或马来酸中至少一种在温度为20～90℃条件下浸渍2～5小时得所需改性分子筛催化剂的技术方案较好地解决了该问题，可用于甲醇转化制丙烯的工业生产中。

With 3.0 t empty dual-use steam forging hammer, 1.0 t empty dual-use steam forging hammer, 750 kg, 400kg, 250kg, 150kg Kong Qichui a total of seven, made 3.0 t, 2.5t of a hammer plywood Taiwan, the construction of 2 m × 1.5m × 1.0m two large coal-fired furnace, a gas generator furnace, resistance furnace, Oil Furnace, Meilu stoves and other heat treatment of the four sets, with the following specs for Φ550 Saw 5,φ100 major fault Liu and other supporting material under the equipment, and has CW611250, T68, and other machining equipment, more than 60 species of vehicles, milling, planing, grinding, boring jobs complete, the main products φ820 × 60 × 1300 following the suppression of three products,φ273 high-pressure forging Billet-three links, all kinds of high-pressure-welded flange and 3.0 t following forging free, annual production capacity of 2400 t.

拥有3.0t空蒸两用模锻锤，1.0t空蒸两用模锻锤，750kg、400kg、250kg、150kg空气锤共7台，自制3.0t、2.5t夹板锤各1台，建造2m×1.5m×1.0m大型燃煤加热炉两座，煤气发生器加热炉1座，电阻炉、油炉、煤炉等热处理炉具各4套，拥有加工规格为Φ550以下锯床5台，φ100大型断料机等配套下料设备，且拥有CW611250、 T68等机加工设备60余种，车、铣、刨、磨、镗工种齐全，主要产品φ820×60×1300以下压制三通成品管，φ273高压锻制三通方坯，各种中高压平对焊法兰及3.0t以下自由锻件，年生产能力2400t。

In the condenser, the condensation of steam into water is conducted under the condition of steam and water saturation.

在凝汽器中，由于蒸汽凝结成水的过程是在汽、水饱和状态下进行的。

With the fact that steam turbo-generator set capacities ceaselessness enhancing , the steam temperature improving unceasingly, high pressure controlling system adopt to improve development respond to control oil, electric power plant can not adopt the tradition turbine oil to be the navar medium to guard against a conflagration under such situation.

随着汽轮发电机组容量的不断增大，蒸汽温度不断提高，控制系统为了提高动态响应而采用高压控制油，在这样的情况下，电厂为了防止火灾而不能采用传统的透平油作为控制系统的介质。

The alkali solution concentration and steam explosion process condition were optimized by testing the solubility of soft cellulose after steam explosion before and after treatment towards aq.NaOH with various concentration. It was concluded that the soft cellulose can dissolve in the 9% aq.NaOH solution completely under the condition of explosion pressure 3.0Mpa and explosion time 60s. At the same time, the influence of sweller-thiourea on the new aq. alkali soluble cellulose/NaOH solution was studied in this paper. The dissolving phenomena and the steam explosion mechanism of soft cellulose were discussed.

本文通过对闪爆前后软木纤维素在不同浓度的稀碱溶液中溶解度的测试分析，优化了碱溶液浓度和最佳闪爆工艺条件，得出在闪爆压力超过3.0MPa，保压时间为60s的条件下，软木纤维素可完全溶解于9％的NaOH稀碱溶液中，并且对助溶剂-硫脲对碱可溶纤维素/NaOH水溶液的增溶效果进行了研究和探索，同时也对溶解机理和闪爆机理进行了分析讨论。

The production of graphite seal, Huatai Paper of this seal is not used for four years to solve the paper on the replacement of vacuum roller machine under frequent maintenance shutdown One major problem, Events specializing in the production of arc-shaped roller, homogenate roller, roller curtain coating, calendering roll, chrome-plated copper guide roll, squeeze roll, rollers, plastic surface sizing roller, roller and other V-type roll, the production of steam-driven corrector, the electric device Tensioner, Manual Tensioner, watermark roller and packet network maintenance, the production of steam pad headbox, wind pressure cage, following paper machine technology, variety renovation, improve speed and assist users to develop products to help users to engage in equipment selection.

生产石墨密封条，此密封条华泰纸业用之四年未换，解决了造纸业上更换真空辊频繁维修下机停产一大难题，专业生产活动弧形辊，匀浆辊、门帘涂布辊、压光辊、镀铜镀铬导辊、压榨辊、托辊、施胶胶面辊、伏辊等各种辊类，生产汽动校正器、电动涨紧器、手动涨紧，水印辊及包网维修，生产汽垫式流浆箱，风压式网箱，承接纸机技术改造、品种翻新、提高车速，并协助用户一起开拓产品，帮助用户从事设备选型。

Secondly, to start with the distribution of temperature field, pressure field and dryness fraction along the injector well, the paper built a steam heat loss forecast model of the injector well, obtains condition the best steam injection pressure and steam injection speed under certain formation.

其次，从蒸汽沿注汽井井筒的温度场、压力场以及干度的分布入手，建立了注蒸汽井井筒的热损失计算模型，得出一定地层条件下的最佳注入压力和注汽速度。确立了井筒的最佳注汽压力和速率。

Infrared spectra demonstrated that the hemicelluloses in steam-treated chips were less than that in untreated chips. This is one of the main reasons why steam treatment could improve particleboard stability. We found that the reduction of the hemicelluloses in Birch chip was more than that in Spruce chip under the same condition of steam treatment.

用红外光谱对蒸汽处理后刨花中成分的变化进行了分析，发现处理后的刨花中的半纤维素含量减少了，羟基减少了，这就是蒸汽处理能提高刨花板的尺寸稳定性的主要原因之一。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。