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Mechanical-type steam traps Seat number: Mechanical-type trap according to different working pressure section of the valve seat aperture is divided into a variety of specifications of "seat number", each segment of work pressure and the "seat number" composed of a coordinate displacement curve, different "seat number "The sparse amount of water are very different.

机械型水阀的阀座号:机械型水阀按不同的工作压差段,分成多种规格阀座孔径的"阀座号",每个工作压差段与"阀座号"组成一条坐标曲线的排水量,不同"阀座号"的水量有很大差别。

Some researchers believe that the latter area possesses savanna vegetation. Savannas are closely associated with seasonal drought, and they may be defined by climatic climax vegetation in tropical and subtropical areas. Based on the ecoclimatic analyses as well as the surviving vegetation in Taiwan, we inferred that the potential natural vegetations of these 2 semi-arid regions were not savanna but forest with some drought-deciduous trees. In conclusion, the physiognomic type of grassland dotted with trees may occur in small areas at present, but Taiwan lacks climate-shaped savanna climax vegetation.

本研究将林定义为分布於热带及亚热带之气候形塑的极相植群,气候分析结果表明台湾半乾旱区域之缺水逆境并不严重,再配合现生残存植群之观察,发现台湾有形相为林的现生局部性植群,但其潜在自然植群应为参杂有乾旱落叶之阔叶树种的森林,并不存在较大面积之潜在的气候型极相林。

From the calculations, it can be found that the van der Waals interactions, the hydrophobic interactions, as well as the H-bonding interactions are crucial for the ligand binding. The 4-phenylamino group can produce strong van der Waals adn hydrophobic interactions with the nonpolar side chains of the residues deep in the binding cleft. The R^1 and R^2 substituents on the bicyclic chromophore can also produce strong van der Waals and hydrophobic interactions with the residues located at the exterior part of the binding pocket. Moreover, the two N atoms of the quinazoline can form H-bonds with EGFR, which will produce significant contribution to biological activities. The calculated nonbonded interactions between anilinoquinazolines and EGFR, as well as the information obtained from the predicted complexes, can interpret the structure-activities of the inhibitors well, which can afford us important information for structure-based drug design.

从模拟结果得到的抑制剂和靶酶之间的相互作用模式表明范德华相互作用、水相互作用以及氢键相互作用对抑制剂的活性都有重要的影响,抑制剂的苯胺部分位于活性口袋的底部,能够与受体残基的非极性侧链产生很强的范德华和水相互作用,抑制剂双环上的取代基团也能和活性口袋外部的部分残基形成一定的范德华和水性相互作用,而抑制剂喹唑啉环上的氮原子能和周围的残基形成较强的氢键相互作用,对抑制剂的活性有较大的影响,计算得到抑制剂和靶酶之间的非键相互作用能以及抑制剂和靶酶之间的相互作用信息能够很好地解释抑制剂活性和结构的关系,为全新抑制剂的设计提供了重要的结构信息。

The effective means for increasing the efficiency of power plant is to connect the extraction feedwater system with drainage pump. But the running conditions of drainage pump is bad, because the working substance in drainage pump is generally low pressure heater drainage which is of features such as high back pressure and suction temperature.

采用水泵连接的给水回热系统是提高电厂效率的有效措施,但由于低压加热器水具有吸入压力和吸入温度比较高的特点,从而造成水泵的工作条件较差。

Lever Ball Float Steam Traps biggest advantage is not subject to pressure,temperature,cooling water flow fluctuations,continuous drainage,a water that row,the minimum cooling degree 0℃,能使best efficiency heating equipment;lever float steam trap valve seat total in the following level,forming awater seal,no steam leakage;itsPlug Valves minimum working pressure 0.01Mpa,the maximum back pressure rate of≤85%;interior with exhaust,lever float steam traps use the most advanced components as the automatic emptying of diaphragm valves,can automatically exclude non-condensing gas,very sensitive,high quality work and long service life.

杠杆浮球式蒸汽水阀的最大优点是不受压力、温度、冷凝水流量波动的影响,连续排水,有水即排,最小过冷度为0℃,能使加热设备达到最佳工作效率;杠杆浮球式蒸汽水阀的阀座总处于液位以下,形成水封,无蒸汽泄漏;它的最低工作压力0.01Mpa,最大背压率≤85%;内部带有排气装置,杠杆浮球式蒸汽水阀采用最先进的膜盒元件做为自动排空气阀,能自动排除不凝结气体,非常灵敏,工作质量高,使用寿命长。

According to Q-e equation, EMA and iPMA that are prone to copolymerize with NIPAM were selected to prepare hydrophobically-modified pNIPAM microgels.

根据Q-e方程,通过选择易于与NIPAM共聚的水性单体EMA、iPMA,成功制备了水性链段在微凝胶网络中无规分布的水改性pNIPAM微凝胶。

Cation group has the capability of charge neutrality and this would make oily wastewater demulsify and remove oil easily. Hydrophobic group would improve hydrophobic-oleophilic nature of the oil granule. Simultaneously, wetting reversed agent would change wetting performance of oil granule, enhance conglutination capability between air bubble and oil granule. And Frother would form bigger foam layer on the water, so it could prevnt granule with air bubble from rolling downward.Using the hydrophobic polymeric flocculant as one of ingredients for flotation agent formula, the flotation agent has good treatment effect.

浮选剂配方中的水性高分子絮凝剂分子链上带有的阳离子基团起到电中和作用,使含油污水易于破乳除油,而水基团能增强颗粒的水性能;润湿反转剂能改变颗粒的润湿性,增强气泡与颗粒的粘附能力;起泡剂在水面能形成强度较大的泡沫层,起阻止带气絮粒向下翻动的作用。

Hydrophobic-hydrophilic macroporous polydivinylbenzene/polyacrylethylenediamine interpenetrating polymer networks (PDVB/PAEM IPN) were prepared by the sequential suspension polymerization method. These were composed of two networks, of which one was hydrophobic and the other was hydrophilic. The objective of this work was to study the adsorption thermodynamics and adsorption kinetics of this hydrophobic- hydrophilic IPN. The focus was on adsorption isotherms of vanillin at different temperatures, and these fit well into the Freundlich adsorption isotherm. The isosteric adsorption enthalpy, adsorption Gibbs free energies and the adsorption entropy could be calculated according to thermodynamic functions.

采用分步悬浮聚合法制备了具有水性能的聚二乙烯基苯(polydivinylbenzene, PDVB)为第一网,具有亲水性能的聚丙烯酰乙二胺(polyacrylethylenediamine, PAEM)为第二网的水/亲水大孔聚二乙烯基苯/聚丙烯酰乙二胺互穿聚合物网络(interpenetrating polymer networks, IPN),研究这类水/亲水IPN组成的树脂对吸附质的吸附热力学和吸附动力学;测定了该树脂对香兰素在不同温度下的吸附等温线,吸附等温线符合Freundlich等温吸附方程,利用热力学函数关系计算出了吸附焓、自由能和熵变。

The new opinion and mechanism that the simultaneously adsorption of complex pollution of both organic and heavy metals will be achieved on soil modified with amphoteric surface modifying agent, which have both charged group and organophilic group on one ASMA molecule, were proposed at first time, and its rationality was testified at the same time; The 50% was the critical CTMAB modifying ratio of soil CEC at which the organophilic bond modifying mechanism was emerged; The thermodynamic characteristics of adsorption of OPT and HMP on OMS were discovered ; The study revealed the surface peculiarity of OMS that the modifying agent were distributed at uneven scatter mode and multi-characters surface were coexisted on surface of OMS, revealed the adsorption peculiarity of OMS that multi-mechanisms were coexisted, confirmed the unequal charge amount modifying mode of OMS in which dual-modifying mechanism of both ion exchange and OPB were processed at the same time, and confirmed that the adsorption hobby to CTMAB was higher than that to Ca2+ on Lou soil.

首次提出了用两性表面修饰剂对土壤进行修饰改性,利用两性表面修饰剂所具有的荷电基团和水基团达到对土壤中有机、重金属污染物同时吸附的思路和机理,并通过实验证实了所提设想的合理性;发现了土壤CEC值的50%修饰比例是CTMAB开始显现以水键机制对土土样表面进行修饰的临界点;揭示了有机修饰改性土对有机物、重金属吸附过程的热力学特征,填补了该项研究工作的空白;阐明了修饰剂在改性土表面呈分散态的非均匀分布,改性土表面具有不同性质表面共存的表面特征和对污染物多机制共存的吸附特征,确定了阳离子表面修饰剂在土表面的修饰是一种离子交换和水键结合两种机制相伴并行且为非等电荷量交换的修饰反应模式,以及土具有对CTMAB的吸附偏好性远大于对钙离子吸附偏好性的特征。

By these technical methods and obey the principle which is complete exploration; find condition; drainage is first combined with blind in and mine is the last after drainage which after exploration, sandrock water is controlled completely.

通过这些技术手段,遵循&综合勘探,查明条件,以为主,堵结合,先探后,先后采&的原则,彻底治理砂岩水,对梁宝寺矿井的防治水工作及巨野煤田内其它矿井的防治水工作有一定的指导和推广应用价值。

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推荐网络例句

The medicinal plant resources of Gentianaceae in Sichuan Province.

四川省龙胆科药用植物资源。

"Some fortuneteller," scoffed the man, I'm the father of THREE children.

" "一些算命",嘲笑他,"我的父亲有三个孩子。

There are over 90 universities and above 150 institutes to provide Bachelor or above.

英国现有90多所大学和150多所提供本科以上课程的学院。