精制

This paper dealed with study on a preparing process of fibrous superabsorbent from refined absorbent cotton through ethreification and crosslinking.

研究了由精制脱脂棉经过醚化、交联等反应制备纤维状高吸水材料的工艺过程。

Using refined cotton, chloroacetic acid, sodium hydroxide and hydrogen peroxide as main feedstock, sodium carboxymethyl cellulose was made by the process of basification, etherification, abstersion and drying.

以精制棉、氯乙酸、氢氧化钠和过氧化氢为原料，经过碱化、醚化、洗涤、干燥，制得羧甲基纤维素钠。

Premise Liquefied petroleum gas is derived from oil gas, natural gas, the gas production of refinery and petrochemicals. The main components are dimethylmethane, propylene, butane, butylene and such low class hydrocarbon. It's a gas with achromaticity and transparence; LPG is hardly dissolved in water, but dissolved in ethanol and aether, it can dissolve gas production, propagation oil and caoutchouc.

液化石油气（liquefied petroleum gas，LPG）是石油伴生气、天然气、炼油厂及石油化工厂的气体产品，经分离精制而来，其主要成分为丙烷、丙烯、丁烷、丁烯等低分子烃；无色透明，带有微弱的臭味；难溶于水，溶于乙醇和乙醚等，并能溶解石油产品，动植物油和天然橡胶。

Many processes were used to refine benzoic acid. Each process has its advantages and disadvantages and can be used in different production conditions.

苯甲酸精制方法有很多种，每种方法都有各自的优缺点，适用于不同的生产条件。

In this study, the Industrial Waste Oil with high acid value and methanol were used to produce biodiesel.

本次研究以菜籽油生产过程中产生的高酸价工业废油为原料，经过预处理精制后与甲醇进行酯交换反应制取生物柴油。

Refining monomer and preparating plexiglas sheet having yellow color were researched. The two projects were adopted, one was to add fluorescence adding white acidifier OB and PF, the other was to process alkali to wash and add additive before rectifying.

对工业上精制单体制取有机玻璃板颜色发黄问题进行了研究，采用在预聚体中加荧光增白剂OB和PF与裂解单体进行精馏前碱洗及加添加剂两个方案。

This product is made of high efficient and multifunctional adsorption material activated carbon fiber and nonwoven from refining.

采用国际上流行的新型高效，多功能吸附材料--活性炭纤维和无纺布精制而成。

Production of Lin Guang anticorrosive wood oil select natural material, it has strong percolating force and adhesive force.

林光牌防腐木油选用天然原料精制而成，具有超强的渗透和附着力。

On this basis,includ-ed commercial organic fertilizer was designed to three fertilization levels.

在有机生产条件下布置小区试验，研究了有机肥料对番茄生长、养分平衡和果实品质的影响，研究中采用农家堆肥、精制有机肥、沼渣为供试有机肥料，进行等氮投入，其中精制有机肥在此基础上额外设置了3个施肥水平。

The effect of different organic fertilizers on the growth、nutrient balance and fruit quality of tomato was studied in the organic agriculture field. The fertilizers used in the experiment were farm manure 、commercial organic fertilizer 、biogas residues and which under the same N input condition. and on this basis, included commercial organic fertilizer was designed to three fertilization levels.

在有机生产条件下布置小区试验，研究了有机肥料对番茄生长、养分平衡和果实品质的影响，研究中采用农家堆肥、精制有机肥、沼渣为供试有机肥料，进行等氮投入，其中精制有机肥在此基础上额外设置了3个施肥水平。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。