查询词典 water vapor

A complete set of thermodynamically consistent property data (vapor pressure, aqueous solubility, octanol solubility, octanol-water partition coefficient, octanol-air partition coefficient, and air-water partition coefficient) for sixteen PAHs naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, chrysene, benzoanthracene, benzofluoranthene, benzofluoranthene, benzopyrene, indeno[1,2,3-c,d]pyrene, dibenzo(a,hanthracene and benzoperylene was derived from measured data reported in the literature.

然而，由于存在实验室内、实验室间和不同仪器、不同方法间的误差等因素，已发表的物化性质数据存在小分子量PAHs物化性质参数多但存在差异、大分子量PAHs相关参数较少甚至缺乏的问题。

The relationship between water's boiling on the oil-water interface and the occurrence of boilover was analyzed in the point view of the dynamics of vapor bubbles and the fundamentals of multiphase flow.

还从汽泡动力学和多相流的基本原理出发，分析了油水界面上的水沸腾强度与扬沸火灾形成机制之间的关系。

Density Functional Theory method was used to optimize the geometries of 209 PCDE molecules, 209 PBDE molecules and 75 PCDD molecules at the B3LYP/6-31G* level. Using computed structural parameters as theoretical descriptors, the forward stepwise multiple regression technique was adopted to obtain QSPR models of environmental partition properties for these POPs by using GQSARF 2.0 and SPSS12.0 for windows programs. The obtained QSPR models are as follows:(1) QSPR models for predicting subcooled liquid vapor pressure, n-octanol/water partition coefficients lgK_(ow and subcooled liquid water solubilities -lgS_(w,l of PCDEs, of which correlative coefficients (R~2) are 0.988, 0.958 and 0.959 and the root-mean-square-error of estimation are 0.134, 0.116 and 0.327 respectively.(2) QSPR models of lgPL and n-octanol/air partition coefficients lgK_(oa for PBDEs, which both contain three structural parameters. The values of R2 for the two models are both 0.997 while the values of RMSEE are 0.073 and 0.062 respectively.(3) QSPR models of lgKow and–lgS_ for PCDEs, which both have one variable (mean molecular polarizability,α). The values of R~2 for the two models are 0.978 and 0.866 and the values of RMSEE are 0.300 and 0.270 respectively.(4) The molecular structures of 24 substituted naphthaline compounds were optimized using Hartree-Fock and DFT methods at four different levels and the same means was used to obtain four three-parameter (EHOMO, q~+ andα) QSPR models of lgK_. The model at the HF/6-311G** level is the best one of which R2 is 0.9662 and RMSEE is 0.380.(5) QSPR study for environmental partition properties of PCDEs was also performed using position of Cl substitution method in which simple parameters of substitution position were taken as descriptors. The multiple linear regression was performed with GQSARF 2.0 and SSPS 12.0 for windows programs to obtain QSPR models of lgP_L, lgK_ and–lgS_ for PCDEs of which R~2 are 0.991, 0.983 and 0.965 and RMSEE are 0.311, 0.100 and 0.300 respectively.

采用密度泛函理论方法在B3LYP/6-31G*水平上对PCDEs、PBDEs和PCDDs的分子结构进行了全优化计算，以计算得到的量子化学参数作为理论描述符，采用GQSARF 2.0和SPSS 12.0 for windows统计程序进行正向逐步回归分析，建立了这些POPs的环境分配性质的QSPR模型：(1) PCDEs的过冷液体蒸汽压、正辛醇/水分配系数lgK_(ow和水溶解度-lgS_(w，l的QSPR模型，这3个QSPR模型的相关系数(R2)分别为0.988、0.958和0.959，估计的均方根误差分别为0.134、0.116和0.327；(2) PBDEs的lgPL和正辛醇/空气分配系数lgK_(oa的QSPR模型，这两个模型都包含三个分子结构参数，其R~2都为0.997，RSMEE分别为0.073和0.062；(3) PCDDs类化合物的lgK_和-lgS_w的QSPR模型，两个模型都只含一个变量，其R~2分别为0.978和0.866，RSMEE分别为0.300和0.270；(4)采用Hartree-Fock和DFT方法，在4种不同水平上优化计算了24个取代萘系列化合物的分子结构，采用上述同样的方法分别建立了四种水平上的三变量lgK_模型，通过比较得到，在HF/6-311G**水平计算得到的模型最好，R为0.966，RSMEE为0.380；(5)同时，采用氯原子取代位置方法对PCDEs的环境分配性质进行QSPR研究，建立了PCDEs的lgPL、lgK_和-lgS_的QSPR模型，其R~2分别为0.991、0.983和0.965，RSMEE分别为0.110、0.100和0.300。

The present invention desalts brine to produce fresh water at normal condition through evaporation in the air to produce vapor condensation of the evaporated water molecules in certain condition and recovering condensation heat for circular use.

本发明是有关基于在常压条件下盐水蒸发产生水蒸汽，水蒸汽冷凝，并回收其冷凝热以供盐水蒸发所需热量的机理实现对苦咸水、海水等脱盐产生淡水的方法。

When the water boils, it percolates through the low pressure zone, the vapor condenses and water flows back.

当水，说到底，它percolates通过低气压区，水汽凝结和水流回）控制器编程启动加热元件时，具温度较9of低于预设值。

When the water boils, it percolates through the low pressure zone, the vapor condenses and water flows back.

当水，说到底，它percolates通过低气压区，水汽凝结和水流回）控制器编程启动加热元件时，模具温度较9of低于预设值。

With Ammonia as refrigerant and water as absorbent, they are boiled by the heater in the generator, as a result, the Ammonia-water solution is evaporated. The Ammonia vapor is purified by the rectifier and is condensed into liquid Ammonia in condenser. The liquid Ammonia and the pure Helium purified in the absorber are evaporated together in the evaporator and to absorb heat thus refrigerate at the same time.

采用氨为制冷剂，水为吸收剂，通过对制冷机芯的发生器加热，使氨水溶液中的氨蒸发，氨蒸汽经精馏器提纯后进入冷凝器成液氨，液氨在蒸发器中与经吸收器提纯的纯氦共同蒸发，同时从外部吸收热量，达到制冷的目的。

In one corner was a stagnant pool of water, surrounding an island of muck; there were several half-drowned fowls crowded together under a cart, among which was miserable, crest-fallen cock, drenched out of all life and spirit; his drooping tail matted, as it were, into a single feather, along which the water trickled from his back; near the cart was a half-dozing cow, chewing her cud, and standing patiently to be rained on, with wreaths of vapor rising from her reeking hide; a wall-eyed horse, tired of the loneliness of the stable, was poking his spectral head out of a window, with the rain dripping on it from the eaves; an unhappy cur, chained to a dog-house hard by, uttered something every now and then between a bark and a yelp; a drab of a kitchen wench tramped backwards and forwards through the yard in patterns, looking as sulky as the weather itself; everything, in short, was comfortless and forlorn, excepting a crew of hardened ducks, assembled like boon companions round a puddle and making a riotous noise over their liquor. By Washington Irving

在院子的一角，一潭污水围着孤岛似的粪堆；几只几乎被雨水淋透的鸡簇拥在一辆马车底下，其中一只可怜的公鸡，倒垂着鸡冠，被淋得没精打采，毫无生气；它那耷拉着的尾巴粘结在一起，仿佛只成了一根羽毛，雨水顺着它从背脊往下直淌；离马车不远处，有一头睡眼惺忪的奶牛，嘴里嚼着反刍的食物，默默地站在那里，任凭雨水打在身上，湿淋淋的背上冒出缭绕的水气；一匹眼珠小而眼白特大的马厌倦了马厩里的寂寞，把它那幽灵似的脑袋从窗口探了出来，屋檐上的雨水滴沥滴沥地落在它头上；一只不幸的杂种狗被链条拴在近旁的狗窝里，时时发出似吠似嗥的声音；一个邋遢厨娘拖着木屐，迈着沉重的步子在院子里进进出出，她那郁郁不乐的神色，就象阴沉的天气一样；总之，除了一群饱经风雨的鸭子，象饮酒作乐的朋友那样聚集在污水潭的四周呷呷嬉水而外，这儿的一切都令人感到凄凉和沮丧。

In one corner was a stagnant pool of water, surrounding an island of muck; there were several half-drowned fowls crowded together under a cart, among which was a miserable, crest-fallen cock, drenched out of all life and spirit; his drooping tail matted, as it were, into a single feather, along which the water trickled from his back; near the cart was a half-dozing cow, chewing her cud, and standing patiently to be rained on, with wreaths of vapor rising from her reeking hide; a wall-eyed horse, tired of the loneliness of the stable, was poking his spectral head out of a window, with the rain dripping on it from the eaves; an unhappy cur, chained to a dog-house hard by, uttered something every now and then between a bark and a yelp; a drab of a kitchen wench tramped backwards and forwards through the yard in patterns, looking as sulky as the weather itself; everything, in short, was comfortless and forlorn, excepting a crew of hardened ducks, assembled like boon companions round a puddle and making a riotous noise over their liquor.

在院子的一角，一潭污水围着孤岛似的粪堆；几只几乎被雨水淋透的鸡簇拥在一辆马车底下，其中一只可怜的公鸡，倒垂着鸡冠，被淋得没精打彩，毫无生气；它那聋拉着的尾巴粘结在一起，仿佛只成了一根羽毛，雨水顺着它从背脊往下直淌；离马车不远处，有一头睡眼惺松的奶牛，嘴里喂着反刍的食物，默默地站在那里，任凭雨水打在身上，湿淋淋的背上冒出缭绕的水气；一匹眼珠小而眼白特大的马厌倦了马厩里的寂寞，把它那幽灵似的脑袋从窗口探了出来，屋檐上的雨水滴沥滴沥地落在它头上；一只不幸的杂种狗被链条拴在近旁的狗窝里，时时发出似吠似嗥的声音；一个邋遢厨娘拖着木屐，迈着沉重的步于在院子里进进出出，她那郁郁不乐的神色，就像阴沉的天气一样；总之，除了一群饱经风雨的鸭子，像饮酒作乐的朋友那样聚集在污水潭的四周戏水而外，这儿的一切都令人感到凄凉和沮丧。

Water is normally lost as vapor during transpiration but, if the atmosphere is very humid, water may also be forced from the leaves through hydathodes as a result of root pressure.

水分一般通过蒸腾作用以水蒸气的形式散失，但是如果大气非常湿润，根压就会迫使水分从叶片的排水孔散失。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。