尼龙是由空气、煤和水合成的。
防水合成皮革鞋面为您提供您需要的保护和耐用性。
Waterproof synthetic leather upper gives you the protection and durability that you need.
用硫酸锆、硫酸氢钾分别代替浓硫酸，催化环己醇脱水合成了环己烯，主要考察了催化剂用量、分馏反应时间对产物收率的影响。
Cyclohexene was synthesized by dehydration of cyclohexanol using zirconium sulfate or potassium hydro - gen sulfate as catalyst instead of concentrated sulfuric acid.
科学家一直在尝试在实验室中重现植物的结构和功能，最高的目标当然是人工树叶能够和真实树叶一样有效地利用阳光和水合成能量。
practical artificial leaf that can turn sunlight and water into energy as efficiently as the real thing has long been a Holy Grail of chemistry, and researchers at MIT may have finally done it.
研究了以二苯甲酮和80%水合肼为原料，合成二苯甲酮腙的工艺，探讨了物料配比、反应时间、浓度等对目的产物收率的影响。
Synthesis process of benzophenone hydrazone is studied with benzophenone and 80%hydrazine as raw materials. Effects of material ratio, reaction time and concentration on aimed products are explored.
介绍了水合物抑制剂hbh的合成工艺，对其水合物抑制性及与其它处理剂的配伍性进行了室内评价。
In this paper, synthetic technology of hydrate inhibitor HBH is presented and its inhibitive property and compatibility with other additives are also evaluated in laboratory.
以十二水合硫酸铁铵为催化剂合成乙酸酯。
Acetates were synthesized with ammonium ferric sulfate as catalyst.
综述了水合肼的衍生物在医药、农业及工业上的应用，介绍了其合成方法及收率。
The applications of the derivative of hydrazine hydrate to medicine, agriculture and industry are summarized. Its synthesis and recovery rate are reviewed.
采用一水合硫酸氢钠作为催化剂，催化己二酸生产副产物——混合二元酸与甲醇反应合成混合二元酸二甲酯。
Mixed dibasic acid dimethyl ester was synthesized from methanol and mixed dibasic acid, the byproduct of adipic acid, using sodium sulfate monohydrate as catalyst.
通过对硫代卡巴肼的合成研究，确定水合肼与二硫化碳最佳的物质的量配比为3。
According to study of synthesis thiocarbohydrazide, confirmed the optimal ration of hydrazine hydrate to carbon disulfide is 3.
用水合硝酸盐作氧化剂、以尿素为燃料 ，根据推进化学计算原料的配比 ，进行了复相PSZ超细陶瓷粉的低温燃烧合成 。
Multi phase PSZ micro_powders were prepared by low temperature combustion synthesis (LCS) method, with which nitrates were used as oxidizers while urea as fuels.
介绍了过氧化氢法生产水合肼过程中中间体酮连氮合成用催化剂的研究进展。
Research progresses of catalysts for synthesizing ketazine intermediate in the production process of hydrazine hydrate by method of hydrogen peroxide are introduced.
介绍对尿素法水合肼合成工艺、冷冻法水合肼提纯工艺进行的优化，和对丙酮汽提法提纯水合肼进行的尝试。
It is introduced that how the optimization of the hydrazine hydrate synthetic technology by urea method and the hydrazine hydrate purification technology by cooling method has been carried out.
叙述了六方水合铝酸钙的合成条件和方法，并通过化学分析、TG - DTA分析和XRD分析对所合成的六方水合铝酸钙进行了表征。
Synthesis condition and method of hexagonal calcium aluminate hydrate are described. The synthetic hexagonal calcium aluminate hydrate is characterized through chemical, TG-DTA and XRD analysis.
合成了低水合硼酸锌，测定了它的部分物理常数。
Low hydrated zinc borate was synthesized, and part of its physical constants were determined.
通过实验研究了利用模拟瓦斯气体在井下温度和中高压的条件下合成瓦斯水合物。
The paper introduces the formation of imitative gas hydrate at the temperature in main shaft and moderate high pressure.
综述了由环氧乙烷制乙二醇、环氧乙烷经碳酸乙烯酯制乙二醇、环氧乙烷催化水合制乙二醇及以合成气制乙二醇研究进展。
Latest advances in preparation of ethylene glycol(EG) were reviewed, including preparation of EG via catalytic hydration from ethylene oxide(EO) and ethylene carbonate(EC), as well as via syngas.
以乙酸和环己醇为原料，六水合三氯化铝为催化剂催化合成了乙酸环己酯。
Cyclohexyl acetate was synthesized from acetic acid and cyclohexanol catalyzed by aluminum chloride hexahydrate.
介绍了一种用于合成笼型结构水合物的合成设备、合成原理及用水合物储运煤层气的优点。
The article introduces the principle and equipments for production of clathrate hydrate, and the advantages of storing and transporting coalbed methane in hydrate form.
水热合成了水合硅酸钙。
结果表明：煤层气水合物制备条件温和、储气性能优良，合成工艺技术难度不大。
The findings of the research show that the CBM hydrate requires mild preparation condition and simple synthetic process, furthermore, it has superior gas storage performances.
报道了以硫酸铁水合物作催化剂合成乙酸酯的研究结果，并讨论了该酯化反应的最佳条件。
The hydrated ferric sulfate was used as a catalyst for esterification of alcohol with glacial acetic acid and discussed the best condition in reaction of esterification.
研究了由已二酸二乙酯与水合肼反应合成己二酰二肼。再用乙酸酐酰化己二酰二肼得到金属减活剂N。
Metal deactivator N, N'-Di-acetyladipic dihydrazine was prepared by reacting diethyl adipate with hydrazine hydrate, and then was treated with acetic anhydride.
报导了以水合氯化铁和酒精为原料合成氯乙烷的工艺及产品指标。
The process of ethyl chloride by using hydrous ferric chloride and alcohol as reactants as well as the indices of th product has been reported in this paper.
以水合肼副产碱渣为原料，选择湿法低温合成结晶法制备过碳酸钠。
Sodium percarbonate were produced by by-product alkali residue of hydrazine hydrate as the material and wet low temperature synthesis crystallization method.
在微波辐射条件下，以水合肼、尿素和苯甲醛为原料，采用一釜两步法合成了苯甲醛缩氨基脲。
The experimental results showed that microwave irradiation could enhance the yield of benzaldehyde semicarbazone.
在微波辐射条件下，以水合肼、尿素和苯甲醛为原料，采用一釜两步法合成了苯甲醛缩氨基脲。
The experimental results showed that microwave irradiation could enhance the yield of benzaldehyde semicarbazone.
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