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- Direct oxidation of toluene is a simple and cheap production technology of benzaldehyde. 摘要甲苯直接氧化制备苯甲醛是一条最为简单而经济的生产工艺。
- The new synthetic route for tetrahydrofuran via direct oxidation of butadiene was introduced. 介绍以丁二烯为起始原料、经乙烯基环氧乙烷制备四氢呋喃的新工艺。
- The capability of direct oxidation of CN~- to CNO~-, HS~- to SO_4~= might be in existence, but could not be the predominant reactions. CN~-和HS~-直接氧化生成CNO~-和SO_4~(2-)反应的可能性虽然存在,但并不一定是主要反应。
- The process of acetic acid production by direct oxidation of ethylene was studied using Pd-SiW 12 /SiO 2 based catalyst. 采用Pd-SiW12 /SiO2 系列催化剂 ,对乙烯直接氧化制乙酸工艺进行了研究。
- Trichloroacetyl chloride has been synthesised by direct oxidation of tetrachloroethylene with oxygen in the presence of ultraviolet light. 在紫外光催化下，以四氯乙烯为原料，直接氧化合成三氯乙酰氯。
- Keywords HALS, N-oxy, direct oxidization, transesterification; 氮氧自由基;直接氧化法;酯交换法;
- The production technologies of phenol are briefly introduced, i.e. method based on cumin, toluene-benzoic acid based method, and direct oxidation of benzene. 摘要简要介绍了苯酚的几种生产工艺，异丙苯法、甲苯-苯甲酸法和苯直接氧化法。
- The methods used include chemical oxidation, direct oxidation at high temperatures using high oxygen pressures, and the crystal growth of stoichiometric lead dioxide in the solution phase. 所使用的方法包括化学氧化法,在高温下用高压氧直接氧化以及化学计量准确的二氧化铅在溶液相中的晶体生长。
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
- Trimethylhydroquinone(TMHQ) was synthesized from 1,2,4-trimethylbenzene(TMB)in petroleum ether by direct oxidation using H_2O_2 as oxidant and ferrite-halogen complexes as catalyst. 以偏三甲苯(TMB)为原料,复合铁卤化络合物为催化体系,过氧化氢为氧化剂,石油醚为有机溶剂,直接氧化合成2,3,5-三甲基氢醌(TMHQ)。
- He has chosen the most direct route. 他选取了最直的路线。
- At low cost, SiC_p/Al_2O_3-Al composites were synthesized by directed oxidation of metals(DIMOX). 在低成本的前提下;利用直接金属氧化法(DIMOX)制备了SiC颗粒增强Al_2O_3-Al基复合材料;并详细叙述了此种方法的工艺过程.
- She's very direct, believes in speaking her mind. 她为人直率，喜欢有什么说什么。
- Can you direct me to the shoe department? 请告诉我卖鞋部在哪里。
- Be there a direct train for Beijing to Nanning? 从北京到南宁有直达车吗？
- See that direct heat does not play on it. 当心别让它直接受热。
- It's a long way by road the train is more direct. 走公路很远--乘火车近。
- Would you please direct me to the zoo? 请问去动物园怎么走?
- My eyes were blinded by the direct rays of light. 在光线的直射下，我看不清楚东西。
