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The tensile properties of the material increased with adding the hydrophobic monomers. The plasticization of the material was affected by the non-freezing water in hydrogel rather than by the freezing water.

疏水性单体的引入使材料的力学强度提高,对凝胶体系具有增塑作用的是非冻结水而不是可冻结的结合水和自由水。

The dissolubility of PPLA in water was (2.16~4.32)×10-2 mg·mL-1 according to eye judgment. The critical micelle concentration was 2.16×10-2 mg·mL-1 obtained from a fluorospectrophotometer. The self-assembled aggregates of PPLA in water were nanoscale spheres observed by a transmission electron microscope. The particle size and zeta potential tests by dynamic light scattering revealed that during preparation, the ratio of hydrophilicity/hydrophobicity, the aqueous medium and the pH had great influences; while dilution, freezing and pH change to basic condition had no effect after preparation, but pH change to acidic condition made the nanoparticles precipitate.

目测法得到其溶解度为(2.16~4.32)×10-2 mg·mL-1;荧光法得到聚合物的临界胶束浓度为1.12×10-3 mg·mL-1;透射电子显微镜观察显示该聚合物在水中的自组装聚集体为纳米级球形;动态激光光散射测试微球的粒径和Zeta电位发现,在微球的制备过程中,聚合物的亲/疏水性比例、水相介质及水溶液的pH值对它影响显著;而制备后,稀释和冷冻对它无显著影响,改变微球的环境pH值至酸性,出现聚集,至碱性无影响。

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。

Based on the science idea of coupling, this paper studied systematically the theory, mathematical model and technology of rock mass hydraulics in coal mining above aquifer, the numerical simulation method, the resemble simulation theory and method. A series of reciprocity law on the stress and displacement of upper and down floor of coal layer, coal pole, fault and the law of water pressure variety was analyzed thoroughly and particularly. Based on the relation of hydraulics character of multi-aquifer, the inspecting and predicting theory model, method and system of water outburst was founded. By used in the colliery, The results were ratified by colliery missionary. In situ test for the hydraulics character of the floor on hydrology observation hole was done.

本文基于固流耦合作用的学术思想,通过理论研究、相似模拟实验、数值分析及现场实际应用,系统研究了带压开采的块裂介质岩体水力学数学模型,数值模拟方法,相似模拟理论与方法,深入细致地分析了带压开采中项底板、煤柱、断层的应力位移分布、含水层水位变化等一系列相互作用规律,并建立了基于多含水层水力联系的底板突水监测预报理论模型及其监测预报方法与系统,并将研究成果应用于现场实际,得到了现场工作人员的一致认可。

The experimental procedure were predigested under the condition that did not effect the experimental results by using alkal potassium persulphate oxidation -ultraviolet spectrophotometry to determine the total nitrogen in water sample with first water instead of redistillation non-ammonia water.

经实验证明,用碱性过硫酸钾氧化-紫外分光光度法测定水样中的总N,以一次蒸馏水代替重蒸馏无氨水,既减少了实验操作程序,又不影响测定结果,同时本文确定了最佳实验条件,并对标准样品进行分析,结果理想。

The water series paint which is developed by ourselves : Water inside and outside wall latex lacquer、Water carpentry lacquer and true stone lacquer、Relievo lacquer、Elasticity lacquer、Metal lacquer、Waterproof? paint、Art paint and other especial functional paint. The index of environment protecting and other technical are further going beyond that of country.

公司自主研发的水性系列涂料有:水性内外墙乳胶漆、水性木器漆及真石漆、浮雕漆、弹性漆、金属漆、防水涂料、艺术涂料等特殊功能涂料,其环保性及各项技术指标远远超出国家标准。

With the case study on Wanzhou in the three-gorges reservoir area, it had been studied and analyzed that the potentialities of exploitation and use on land and ecological safety by established land use database, and it had been revealed that serious loss of water and erosion of soil, ecological environment fragility, the water conservancy project submergence a large amount of land, arrannements of the numerous immigrations need a large amount of land, contradictory remarkableness among human and land, and the latent crisis by extensive management land were main crises and questions of the land use.

利用建立的土地利用现状数据库,以三峡库区最大淹没区万州为研究对象,对库区土地开发利用潜力及生态安全性进行了分析和研究。揭示了库区土地资源利用中存在的主要危机是水土流失严重、生态环境脆弱,三峡工程淹没土地多、移民迁建占地比重大、人地矛盾加剧及粗放经营土地带来的安全隐患等问题。

Agfa's company has also modified its cleaning system, the new scourability version of the machine, the resulting liquid waste be reduced by over 40 per cent, under normal circumstances flushing per square metre plates produce not exceeding 300 ml of liquid waste (including developering, Replenisher developer、Fixer agents and the volume of water added together), in addition to the waste water treatment become more easily, saving water and chemical usage in order to achieve the objective of environmental protection.

爱克发公司也保守了它的冲刷编制,陈的冲版机所爆发的废液量增多了40%,在侧常境况下冲刷每平方米印版爆发不不及300毫升的废液(包含显影液、补偿液、定影剂及火增不躺下的量),除了令废液的办理处事变得更沉重边,同时耗费了火及化学剂的用量,到达环保的纲的。

The report suggests by eletroplate the enterprise builds sewage treatment plant to reach a system of the retexture that use water oneself, sewage billabong, cent undertakes handling character, the part is used to production and auxiliary link through be being answered after retexture, contented industrial water is answered with the requirement, after the others liquid waste amounts to mark through processing, emit into natural water system.

报告建议由电镀企业自建污水处理(通过物化方法去除水中一些物质的过程)厂及回用水再生处理系统,污水分流、分质进行处理,部分经过再生处理后回用至生产及辅助环节,满足工业用水回用要求,其余废水经过处理达标后,排入自然水体。

Determined by the specific geological background of Longhetun, the characteristics of the soil resources show abundant calcium and leaning to alkaline. Monomial indexes to evaluate the revisal coefficient of soil adapted to karst mountains areas were screened out combined with the function of karst dynamics system and analysis of characters of each factor about fertility in soil. Predigestion model to soil revisal coefficient monomial assessment was established by successful importation of the content of nutrition elements in plant body, latent efficient elements in soil and available thickness of soil in the cranny of epikarst according to the characters that three carriers of soil, soil water and karst water supply nutrition to plants and two layers of foundation consist of surface soil and soil in epikarst cranny, and several types of soil revisal coefficient and weather-soil productive potentiality were calculated, the results show that the soil revisal coefficient was even more practical after modification than before, which make up of innovation of this study.

龙何屯特殊的地质背景条件决定了耕地土壤资源的富钙偏碱的特点,结合岩溶动力系统的作用,系统分析土壤中各肥力因子的特点,筛选出适宜岩溶石山区特点的土壤订正系数评价单项指标,针对研究区存在土壤、土壤水、岩溶水三种载体提供植物营养和表层土、土下表层岩溶带裂隙土两层空间基质的特点,成功引入植物体内营养元素含量、土壤元素隐性有效态含量及土下表层岩溶带裂隙土有效厚度等新参数指标,探讨建立了土壤订正系数单项指标评价简化模型,计算出龙何屯各耕地类型土壤订正系数和气候-土地生产潜力,结果显示修正后的土壤订正系数比修正前更符合实际,成为本研究的创新点。

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相关中文对照歌词
Down By The Water
Down By The Water
Washed By The Water
Down By The Water
Meet Me By The Water
推荐网络例句

Do you know, i need you to come back

你知道吗,我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。