查询词典 water-heater

The study on the hardening mechanism of the soft soil with the materials shows that the hardening procedure can be divided into three stages:(1). Hydrating and dissolving stage, when material A and material B of the high-water-content and quick-setting materials respectively dissolve and balance in water.(2). Gel and consolidating stage, when the materials hydrate into calcium crystal and the ion exchange and aggregation of soil particles occur in an alkaline environment.(3). the structure developing stage, when the calcium crystals connect each other, absorb and crystallize the water around; the hydrate remnants, calcium hydroxide, carbonate continuously in water and in the air.

本文对高水速凝材料-软土硬化机理的研究表明，高水速凝材料-软土的硬化过程可分为三个阶段：①水化溶解阶段：主要为高水速凝材料的甲、乙料分别与水的溶解、维持平衡阶段；②胶凝固化阶段：主要为高水速凝材料的水化反应生成钙矾石晶体以及土颗粒在碱性环境中发生离子交换和团粒化作用；③强度增长阶段：钙矾石晶体相互连接，大量吸收周围环境中的水分，并将水分变成自己的结晶水；水化残余物氢氧化钙在水中和空气中发生碳酸化作用。

According to the feature that deformation resulted from water absorption and mildew appear mainly on the rabbet surface of ccf , this paper adopts rsst to spray a special waterproof sealant on rabbet surface of ccf , so that the sealant can get into fiberboard to certain extent by means of capillarity and penetration , blockage the holes between fibers and capillary , cut up passage of water and change the properties of soakage and sorption to water in capillarity and fiber . at the same time , solidified sealant can form a compact waterproof pellicle on rabbet surface so as to prevent water and humidity from fiber ' s expansion and mildewing

针对吸水变形、霉变主要发生在地板企口表面的特征，采用企口表面全封闭法，在复合强化地板企口表面喷涂特殊的防水封闭剂，使其依靠毛细管作用及渗透作用进入板内一定深度，堵塞木纤维之间的空隙及毛细孔通道，截断水分传递的渠道，并改变毛细孔壁及纤维的表面性质以不利于水的浸润与吸附，同时其固化后能在企口表面形成一层致密的憎水薄膜，防止水分、湿气从企口侵入板内引起木纤维膨胀变形、发霉等现象。

The question of water resource rareness and water pollution has become a big block to economic development and peoples life level rising of our country. Making waste water reusable is am important way to make our water resource sustainable use.

我国的水资源短缺和水污染问题已严重制约我国经济建设发展与人民生活水平提高，城市废水资源化是实现水资源可持续利用的重要战略措施。

As an often used physical model with good theoretical and practical values, StreeterPhelps model has been widely used to study water quality. However, in some special water areas the utilitization of StreeterPhelps model has some limitation as confirming reaeration coefficient often comes from tests in rivers with fast water flow speed with no consideration of wave effects. Furthermore, in practical research in Three Gorges Reservoir, the changing rule of COD appears abnormally. In some water areas far from pollution source, the value of COD changes with time, but does not follow the exponential attenuation rule. This phenomenon can not be explained by former modified StreeterPhelps model.

StreeterPhelps模型是目前进行河流水质研究常用的物理模型，具有良好的理论和实用价值，然而在某些特定水域，该模型的应用受到限制，主要原因是复氧系数的取定多在水流速度较大情况下得到的，而未考虑水面波动对复氧系数的影响，另外，在实际研究过程中发现三峡库区COD变化的规律出现异常：在离排污口相当远的水域，COD随时间变化趋势并不是指数衰减，而是在某个常值附近微小摆动，以往很多修正过的StreeterPhelps模型都无法解释这个现象。

Wastewater reclamation and reuse will not only control the water environmental pollution, but also realize the reclamation, reuse and recycling of material, energy and water, which has become the effective method to solve the water shortage and make the water resource used in sustainable way.

通过分析国内外大量的实践，提出污水是一种稳定可靠的、可再生的水资源，污水回收与再用能在控制水环境污染的同时，实现污水中物质、能量和水的回收，成为解决水资源短缺的有效措施，是实现水的良性循环的关键。

Has weak activation and transfer under acid rain effect and redeposition will take place during the course of their moving from surface soil to deep soil. Contrasted quality standard analysis of surface water, ground water and drinking water, these elements will not bring about negative effect to the water environment and ecological environment of soil.

进一步相态分析结果表明，受酸雨淋滤作用的影响，离子的迁移主要发生在盐基离子上，具体表现在经酸雨淋滤后表层土壤水溶态组分中盐基离子浓度降低，与此相对应的是Al离子浓度显著增高，一个直观的反映是土壤的电导率降低。

Based on a differential refractometry, a reference water cell filled with distilled water to reduce influence of temperature drift effectively is partitioned by an oblique optical-transmission plate from a horizontal rectangular water tank, which, as a measurement element, is filled with measured salt water.

基于差动折射率测量原理，引入了一个装有蒸馏水的参考水槽，从而有效地减小了温度漂移对盐度测量带来的影响。

So the effect of pollution improvement is affected, at the same time investment benefit is not fully made well. Aiming at the above problems occurred during the improvement of water environment pollution, based on the general analysis of current water environment pollution situation and cause of pollution by the instance of the water environmental pollution improvement in the centre town of Chengdu City, the article puts forward the reasons of water environment pollution of most cities: wastewater collection is insufficient because of delaying of pipe net construction; capability of sewage treatment is inadequate; manage measure is not regular because of management not according to laws and laws not strictly executed; investment channels of pollution implement is unitary.

通过对成都市中心城水环境治理实施方案的研究，对如何与城市建设相结合来进行水环境污染治理提出以下几点看法：①应合理划分流经城市水体的功能区域和正确确定水环境治理目标一些设想；②必须有科学、合理、全面、可操作性强的城市排水规划；③建设、完善污水收集系统，提高污水收集率，加快城市污水处理厂建设，提高污水处理能力；④对中心城河道按防洪、截污、环卫、绿化、景观的要求进行全面整治；⑤治污资金的筹措应从单一的政府投资模式向多元化的融资渠道发展；⑥制定、完善相应的法律、法规、制度以及工程建设管理措施。

The water storage function of condenser is the must not only for gathering and storing condensed water, various water repellence of thermal system, exhaust steam and chemical feedwater, but also for cushioning dramatically changing turboset flow during the operation, improving the stability of system regulation and ensuring the essential water-absorption pressure head of condensation pump.

凝汽器的蓄水作用既是汇集和贮存凝结水、热力系统中的各种疏水、排汽和化学补给水的需要，也是缓冲运行中机组流量急剧变化、提高系统调节稳定性的需要，并且是确保凝结水泵必要的吸水压头的需要。

The Clean Water State Revolving Fund and Drinking Water State Revolving Fund will receive a total of $6 billion - of that total $4 billion will be used help communities with water quality and wastewater infrastructure needs and $2 billion will be spent on drinking water infrastructure needs.

洁净水周转基金和饮用水周转基金将获得共60亿美元──其中40亿美元将用於帮助有水质问题的社区和废水基础设施，另外20亿美元将用在饮用水基础设施；其中12 亿美元一定会用於环保基础设施建设。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。