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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
This process of dry cleaning can be recommended for use in the fabrication of integrated circuits containing an interlayer of a low-permittivity insulator.
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Experimental results in pilot and commercial plants showed that the air-dense medium fluidized bed is a high efficiency dry cleaning technique.
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Increased concentrations of tetrachloroethene have been found in foodstuffs in homes situated above dry cleaning units and in foodstuffs from groceries located neat drycleaning units.
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In comparison with other dry cleaning methods no radiation damage occurs.
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One had been exposed to chlorinated solvents in dry cleaning and two others had used both carbon tetrachloride and aromatic and aliphatic solvents.
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Catheters were dressed with dry clean gauze or one of two brands of transparent plastic.
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Study of thin gate oxides grown in an ultra-dry/clean triple-wall oxidation furnace system
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Do dry clean any clothes, which cannot be washed or cleaned adequately.
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So far, DHEC does not have a typical size for a groundwater plume at a dry clean ing facility.
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The blood was collected through cardiac puncture using a dry clean syringe for serum studies.
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Dry washing, by using dry rags and a spray bottle, can be an option for manual truck washing.
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Tetrachloroethylene (PCE), a dry cleaning and degreasing solvent, can enter groundwater through accidental leaks or spills, and concentrations as high as 75 mg/L have been reported in Canadian aquifers.
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A Phase I ESA performed on the parcels before the purchase concluded that one of the parcels was the former location of a dry cleaning operation.
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By the 1940s, the site contained one residence and a dry cleaning operation.
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Despite this, an example of this customer myopia is actually given by Peppers and Rogers when they champion a dry cleaning company.
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From the beginning of the 20th century to 1976 a dry-cleaning facility was situated on the site.
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| | Macerate 1.0g of the powdered sample with 20.0 ml of chloroform plus 0.3ml of 25% NH_4 OH in a glassstoppered flask overnight. Take exactly 10.0 ml of filtrate, evaporate and dissolve the residue in 1.0 ml of chloroform. Spot the resulted solution for thin layer chromatography on a layer of alumina (without binder) with xyleneacetone-absolute ethnol-diethylamine (50: 40: 10: 0.6) as the developing solvent, by which anisodamine, hyoscyamine, scopolamine, anisodine and cuscohygrine can be separated. Locate th... | | 本文报道用不含粘合剂的氧化铝薄层,以二甲苯-丙酮-无水乙醇-二乙胺(50:40:10:0.6)为展开剂分离茄科植物中的莨菪碱、东莨菪碱、山莨菪碱、樟柳碱及红古豆碱等五种莨菪烷生物碱,用改良Dragendorff试剂-Wagner试剂(1:1)显色,定量收集莨菪碱、东莨菪碱及山莨菪碱的斑点,莨菪碱和东莨菪碱用氨甲醇洗脱,蒸干洗脱液后分别用pH 5.6及pH 4.5的溴甲酚绿溶液作比色测定;山莨菪碱用4%醋酐氯仿洗脱,蒸干洗脱液后用pH 5.6的溴甲酚绿溶液作比色测定。本法需要样品量小,提取方法简便,测定方法灵敏稳定、重现性好,适用于多种茄科植物样品及其制剂的分析。 | | 文摘来源 | | Hot-melt adhesives based on copolyamides for textiles which have the characteristics of low-melting,large,adhesive bond strength and excellent resistance to washing and dry-cleaning(trichloroethylene or gasolene).The copolyamides consisting of at least three different monomer units are produced by melting polycondensation in the following compositions:(1) laurolactam,(2)caprolactam,(3)hexamethylenediamine salt of adipic acid and(4)hexamethylenediamine salt of sebacid acid or 11-aminoundecanoie acid et al.Th... | | 由共聚酰胺组成的织物用热熔胶粘剂具有低熔点,粘结强度大,耐水洗性能优良和耐干洗(三氯乙烯,汽油)性能显著等特点。此共聚酰胺是由三种以上不同单体组分通过熔融缩聚来制备的,其成分如下:(1)月桂内酰胺,(2)己内酰胺,(3)己二胺己二酸盐,(4)己二胺癸二酸盐或11-氨基+-酸等。该共聚酰胺的相对粘度为1.3~1.7,熔点为80~130℃. | | 文摘来源 | | The main ingredients of the dry cleaning agent are absorbing agent, mixed organic solvent,and small amount of additive agent. A brief introduction of their selection and testing measures,and a trial to determine dry-cleaning ability, colour deviation and comparison of foreign dry-cleaning agent with domestic one are stated. Besides, the testing was also made on the anti-corrosionand swelling abilities of the metal and sealing ring which are used for the packing of the agent.Finally, a good comprehensive eva... | | 本文介绍了喷雾干洗剂的主要成份是吸附剂、混合有机溶剂以及少量添加剂;简述了各组份的选择及测试方法;对研制的干洗剂作了干洗效果、色差评定以及与国外同类型产品的对比试验。此外,对干洗剂气雾包装所用金属材料及密封垫圈作了耐腐蚀性及抗溶胀性试验。本文对喷雾干洗剂进行综合评价,得出了肯定的结论。 | | 文摘来源 | |   | | << 更多相关文摘 |
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