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Two novel SFME systems are found fo the first time consisting of furaldehyde/DMF/water and furaldehyde/ethanol/water.

发现了两个SFME体系:呋喃甲醛/DMF/水和呋喃甲醛/乙醇/水体系。

The Ni-Fe and Mg-Al-Fe-LDH show paramagnetism at normal temperature, the calcined samples of LDHs show super-paramagnetism. The magnetization increases with the higher Fe~(3+) content and is independent of the crystal structure of LDHs. Magnetization of the calcinates of Ni-Fe-LDHs is higher than the Mg-Al-Fe-LDHs.3. Two novel SFME systems were found for the first time, that is furaldehyde/DMF/water and furaldehyde/ethanol/water system.

结果表明,Ni-Fe和Mg-Al-Fe型LDHs本身及其煅烧产物在常温下均呈现顺磁性,其煅烧产物均呈现超顺磁性;同类LDH中其煅烧产物的磁性大小与Fe~(3+)含量成正比而与LDH的晶体结构无关,Ni-Fe LDHs及其煅烧产物的磁性强于Mg-Al-Fe LDHs及其煅烧产物,。3。

Five Co-B amorphous alloy catalysts were prepared by chemical reduction in different media, including pure water and pure ethanol as well as the mixture of ethanol and water with variable ethanol content. Their catalytic properties were evaluated using liquid phase furfural hydrogenation to furfuryl alcohol as the probe reaction.

采用化学还原法在不同介质中制备了5种Co-B非晶态合金催化剂,反应介质包括水、乙醇以及不同乙醇含量的乙醇-水混合溶液,并以液相糠醛加氢制备糠醇为探针反应考察了其催化性能。

Result Galium aparina water extract had some effects on the germination rate, roots length, stem length and fresh weight. The water extract decreased the germination rate and roots length of the 3 vegetables, but its effects on the stem length and fresh weigh was variable in different species.

结果]猪殃殃水提液对3种蔬菜的发芽率、根长、茎长、鲜重都有一定的影响;对发芽率、根长均表现为抑制作用,对茎长和鲜重的化感作用则因物种不同而不同。

The scenario of water resources managemet been established based on monitoring data during many years in Gantang area,Tongzhou county,Beijing city.Some expected results on reasonable development and utilization of water resources and enironment of protection have been abtained in the last decade.

摘 要:根据北京通州地区甘棠乡水源地多年监测的数据,所建立的水资源管理模型,经过近10a的运营,在管理方案的指导下,逐步实行农业喷灌措施,节水约525×105m3/a。

Are superior to aluminum, wood, plastic, steel.product is a new type of environmental protection and resource re-use products, and compared to similar products also have good strength, impact resistance, good weatherability, good insulation, low coefficient of thermal expansion, fire, water, noise, anti-corrosion, gastight water better, exquisite appearance, easy maintenance, etc., is to promote the use of all countries, and is an ideal decorative materials for environmentally friendly construction, more use of stone resources is the development of new building materials industry direction.

石塑产品属新型环保及资源再利用产品,与同类产品相比较还具有强度佳、耐冲击、耐候性佳、隔热性好、热膨胀系数低、防火、防水、防噪音、防腐蚀、气密水密性佳、外观精致、保养容易等特点,是目前各国提倡使用的,是理想的环保建筑装饰材料,更主要的利用石头资源是当前新型建材行业发展的方向。

In order to improve the soil in Hobq desert, this paper has dealt with such characteristics of palygorskite clays as gelatination, water absorbency and water conservation.

以改良库布齐沙漠为目的,结合坡缕石粘土特有的成胶性、吸附性和保水性能,用巴拉贡矿区的低品位坡缕石粘土进行了粘土成胶性能的研究。

Treatment under mild condition with solvent of lower polarity was in favor of keeping the molecular structure and properties such as water-solubility, gelatination, etc. Acetyl groups were partially eliminated when purified by Pb2 method, leading to increased crystallinity and glass temperature, which resulted in losts of water-solubility and gelatinability. Owing to the slight oxidative degradation with H2O2 method, the changes of chain size and some functional groups of KGM molecule led to decrease of viscosity and excessive swelling rate.

采用温和条件及低极性溶剂有利於保持KGM本身的分子结构以及水溶性、凝胶性等性能;而Pb2法由於部分脱去了KGM的乙酰基,导致结晶度变大,玻璃化温度升高,最终失去水溶性和凝胶性;H2O2法则由於对KGM造成了氧化降解,也改变了分子链的大小以及部分基团,从而导致粘度降低以及溶涨速度较快。

The forecast observation of Sanjiang Plain water lever played a significant role in analyzing and solving many related social and natural problems, such as water resources, genecology, agricultural and forestry economy.

三江平原地下水位观测的预测对该地区的水资源、生态地质以及农林、经济等问题有着重大作用。

To Use: Squeeze into palms and lather with water. Massage genty on your face and rinse with water.

使用方法:挤出适量于手掌心,加水揉出泡沫后,于脸部轻轻按摩,再以清水洗净。

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