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- There are mainly two methods to prepare nano sized titania, uch as vapor phase process and liquid phase process. 纳米钛白的制备方法大致可分为两类,即气相法和液相法,而液相法是研究的重点和热点。
- Compatible with infrared and vapor phase reflow solder process. 适用于回流焊接工艺。
- vapor phase process 汽相过程
- At point e, the substance is wholly in the vapor phase. 到e点时，物质全部变为气相。
- Preparation of powders for ZnO varistors by liquid phase process. 液相法制备ZnO压敏电阻器粉料。
- In this paper,ethylene acetoxylation to VA M in vapor phase in fluidized -bed reactor developed by BP -Amoco was intro duced,which included catalyst,process,t ech -economical analyses. 本文对由BP-Amoco开发的流化床乙烯氧乙酰化制醋酸乙烯的催化剂、工艺以及技术经济性作了分析。
- Liquid and vapor phases cannot coexist in equilibrium. 液相和气相不能在平衡中共存。
- The vapor phase concentration of durene could be adjusted by the self-made adjustor. 自制的高熔点物料气相浓度调控仪能很好地调控气相中均四甲苯的浓度，具有推广应用价值。
- The first step for removing vapor is to orient the package to access the vapor phase of the product. 提取蒸气的第一步是调整钢瓶的方位，使可以接触产品的气相。
- High quality GaN film was grown by hydride vapor phase epitaxy(HVPE) using porous AAO as mask. 采用均匀的多孔阳极氧化铝做掩膜在氢化物气相外延设备中生长出高质量的氮化镓膜。
- Single crystal MTN has been synthesized by vapor phase transport route(VPT) using n-propylamine as a new template. 采用蒸气相合成法,以正丙胺作为笼形类沸石材料MTN合成的新模板剂,合成出MTN单晶。
- Formerly, people thinkhemorrhage is single phase process and quickly stop because of blood solidify andoppress from surrounding brain organization. 以往人们认为脑出血是一单时相过程，由于血液凝固和周围脑组织的压迫，出血会很快停止。
- Objective: To determine content of guajacolum in bamboo juice with vapor phase chromatography(VPC) as the quality control target of bamboo juice. 目的:通过用气相色谱测定鲜竹沥中愈创木酚的含量,作为鲜竹沥的质量考核指标。
- A kind of CrF 3 based catalyst for HHFC 134a preparation by reacting HFC 133a with AHF via vapor phase fluorination is reported. 报道了一种由HCFC 133a与AHF经气相催化氟化制备HFC 134a的CrF3 基催化剂。
- Vapor phase synthesis of 2,3,5-trimethyl phenol from methanol and 3,5-dimethyl-phenol over solid acid catalyst was studied in a fixed bed reactor. 制备并考察了甲醇甲基化法合成2,3,5-三甲基苯酚的固体酸催化剂,进行了甲基化反应工艺条件的优化研究。
- Comprehensive survey of vapor phase inhibitors both at home and abroad is given. The application of VPI and the research trend are discussed. 介绍了国内外的气相缓蚀剂技术发展概况,阐述了气相缓蚀剂技术的应用形式,展望了该技术领域内的研究方向。
- At last, the analysis methods of soil mercury forms and emission flux of vapor phase of mercury from soil are discussed. 最后，还介绍了土壤汞形态的分析方法以及土壤挥发性汞释放通量的测量方法。
- However, the phases and phase processes are still linear. 然而，阶段和阶段过程仍然是线性的。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- Chemical vapor phase oxidation process 化学汽相氧化法
