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- gaseous phase detection 气相检测
- Fumigants are pesticides acting in gaseous phase. 熏蒸剂是以气体形式作用的农药。
- In this text,seven kinds of organic phosphorus in the vegetables were tested with DB-1 capillary post and the chromatograph of gaseous phase with PFPD detection. 用DB1毛细管柱,带PFPD检测器的气相色谱仪定量检测蔬菜中7种有机磷农药残留。
- Latest advances in the gaseous phase catalytic synthesis of difluoromethane and the preparation of catalysts are summarized. 综述了二氟甲烷的气相催化合成工艺及其催化剂制备的最新进展;
- The effects of prepolymerization and the differences in apparent kinetics between gaseous phase polymerization and slurry polymerization are also briefly described. 同时对预聚合的作用及气相聚合与淤浆聚合表观动力学行为的不同性也作了简要介绍。
- The Burnett pvT measurement system was improved. Eighty pressure-volume-temperature data points for HFC-227ea in the gaseous phase were measured using Burnett-isochoric methods. 改进了实验室原有的pvT实验台,测量了HFC-227ea气相pvT性质。
- Ferrite slag is more efficient in removing As and Sb than fayalite slag.The distributions of Sn, Pb, Zn, As, Sb and Bi in gaseous phase increase with increa... 研究表明：无论是硅酸铁炉渣体系，还是铁酸钙炉渣体系，挥发性的伴生元素锡、铅、锌、钾、锑和铋等在气相中的分配率均随熔炼温度的升高而明显增大。
- Abstract: In a multi-beam bathymetry system, phase detection is a key for achieving super-wide coverage. 文章摘要: 多波束测深系统中，相位检测法是实现超宽覆盖测量的关键技术之一。
- The synthesis of dimethyl oxalate (DMO) and diethyl oxalate (DEO) by CO coupling reaction in gaseous phase over the supported palladium catalysts was investigated. 在固定床反应器中对钯系催化剂上CO气相催化偶联制草酸二乙酯和草酸二甲酯的空时收率、选择性和CO的转化率进行了实验研究。
- This paper presents a review concerning the Ziegler-Natta catalysts for gaseous phase polymerization of ethylene and typical methods of preparing the catalysts. 本文综述了乙烯气相聚合催化剂研究状况,列举了一些制备气相聚合催化剂有代表性的方法。
- Transverse Zeeman laser is the ideal light source of phase detection in biomolecular interaction based on SPR principle. 横向塞曼激光器是基于SPR原理的生物分子相互作用相位检测的理想光源。
- A kinetic method for the direct determination of CO_2 in gaseous phase is proposed, based on fading the phenolphthalein when CO_2 dissolves in dilute aqueous solution of NaOH. 本文基于气相中的二氧化碳在稀氢氧化钠-酚酞溶液中的溶解而使酚酞逐渐褪色的动力学行为提出了一种直接测定气相中微量二氧化碳的动力学分析法。
- The DFT phase detection method can take out frequency, phase and magnitude of the base frequency signal from a random synchronization signal. 离散傅里叶变换可以从任意信号中抽取基准频率倍频次信号的相位、频率和幅值,可以解决谐波对外同步信号的影响,从而实现周期控制锁相环对谐波的识别。
- A study of the proton transfer process from halobenzoic acids to benzoic acid in water-ethanol mixtures compared with the same process in the gaseous phase is presented. 将在水乙醇混合溶剂中从卤代苯甲酸到苯甲酸的质子迁移过程与在气相中的同一过程进行了比较。
- Determine with the gaseous phase chromatograph of the electron catching device of little pool after the silicon alkanisation,mark legal quantity outside. 硅烷化后用微池电子捕获器的气相色谱仪进行测定,外标法定量。
- Quality control:material chemical analysis,physical detection,hardness measurement,crevasse detection,metallurgical phase detection. 质量控制：材料化学分析，物理检测，产品硬度检测，裂纹检测，金相检测。
- The kinetic characteristics of catalytic coupling of carbon monoxide to diethyl ox-alate m gaseous phase on Palladium catalyst were studied on the basis of industrial application. 以工业应用为背景,研究了CO在钯系双金属催化剂上气相催化偶联合成草酸二乙酯的动力学特性。
- The characteristic of the differential phase detection (DPD) signal of the SWML read-only disc is analyzed both in theory and experiment. 本文通过理论仿真和实验研究分析了SWML只读光盘的差分相位检测（DPD）信号的特性。
- Liquid phase precipitation method,sol-gel method,alkoxide hydrolysis method,gaseous phase method,solid phase method were discussed and analyzed in detail. 液相沉淀法由于原料廉价易得、工艺简单、产品性能稳定、环境污染少等特点使其成为最具有工业应用价值的纳米氧化镁制备技术。
- The small-scale devices are suitable for the hydrogen source of open-air analysis, hydrogen atom clocks, fuel cells and testing instruments such as gaseous phase chromatographs. 小型金属氢化物储存净化器适于野外分析、标准频标氢原子钟和气相色谱仪等测试仪器及燃料电池的氢气源。
