Because of security concerns, most manufacturers in different countries have abandoned the acetylene method, but use the butadiene method.
出于安全考虑，许多国家已放弃了乙炔法，而采用丁二烯法生产氯丁橡胶。
The content of acetylene and other hydrocarbon in liquid oxygen measured by gas chromatogram has gas chromatogram concentrate method and direct method.
利用气相色谱浓缩法和气相色谱直接法测定液氧中乙炔及其他碳氢化合物含量。
However, rectilinear carbon fibers were synthesized by the catalytic decomposition of acetylene with Cu nanoparticles and Ni nanoparticles as the catalyst prepared by hydrogen-arc plasma method.
然而，利用氢电弧等离子体法制备的纳米铜和纳米镍作为催化剂，催化热解乙炔，得到的产物均是直线型碳纤维。
The relation of acetylene content in the header outlet pipe of convertor with the service time of catalyst in the production of PVC by calcium carbide method was introduced.
介绍了电石法PV C树脂生产中转化器出口总管处的乙炔含量与触媒使用时间的关系。
We suggest that the acetylene reduction method in vivo is simple and fast from screening best symbiotic system of soybeans and nodule bacteria in short time.
乙炔还原活体测定共生固氮为短时间内筛选大豆——根瘤菌最佳共生体提供了简便、快速的方法。
Acetylene inhibition method can measure nitrification rate and denitrification rate and it had been used widely.
乙炔抑制法能同时测定硝化和反硝化作用，在硝化和反硝化作用中有着重要的应用。
Milk Powder was made to a stable emulsion using emulsifier OP. The emulsion was injected into the air acetylene flame. The standard addition method was used to determine zinc.
用乳化剂OP将奶粉乳化成稳定的乳浊液，喷入空气-乙炔火焰中，以标准加入法测定锌。
The invention relates a method of synthesizing alkynol with ketone and acetylene.
本发明涉及一种酮与乙炔反应合成炔醇的方法。
The application of air-acetylene flame atomic absorption spectral method for measuring the iron content in carbonyl nickel powder is studied.
文章运用了空气-乙炔火焰原子吸收光谱法进行羰基镍粉中铁含量的测定。
This paper describes the atomic absorption method in which the pyrogallol is used as releasing agent to assay directly the trace amount of calcium in calcium tungstate in air-acetylene flame.
本文选用了焦（?）酚作释放剂，在空气—乙炔火焰中直接测定钨酸中的微量钙。
This method was simple, rapid and accurate. The relative standard deviation and recovery were 4.0% and 99.5% respectively for vinyl chloride, and 4.6% and (99.8%) respectively for acetylene.
该方法简便、快速、准确，测定的氯乙烯相对标准偏差、回收率分别为4.0%、99.5%，乙炔相对标准偏差、回收率分别为4.6%、99.8%。
The method of determination of copper in light oil by air-acetylene flame atomic absorption was discussed in this paper, and the extraction and enrichment of copper in light oil was reviewed.
探讨了用原子吸收空气-乙炔火焰连续测定轻质油中痕量铜的方法，并考察了轻质油中铜的萃取富集方法。
This paper has two parts: (1) methane coupling under microwave plasma catalysis, (2) acetylene conversion into ethylene under conventional method.
本论文的研究内容有两个方面：（1）微波等离子体催化的甲烷偶联反应，（2）传统技术催化乙炔加氢转化为乙烯。
The method of the invention utilizes a front-end acetylene removal unit (' ARU ') located after a charge gas compressor in which acetylene is selectively reduced.
本发明的方法利用位于裂解气压缩机后的选择性还原乙炔的前端乙炔除去单元(“ARU”)。
The application of nitrous oxide-acetylene flame atomic absorbance spectral method to measure the content of calcium in positive powder of thermal activated batteries is studied.
简述了用一氧化二氮乙炔火焰原子吸收光谱法测定热激活电池正极粉中钙含量。
Acetylene Inhibition method was used in a soil core incubation system to study denitrification loss from Beijing fluvial soil during summer maize growth period.
采用乙炔抑制-土柱培养法研究了北京郊区潮土上夏玉米生育期土壤反硝化状况。
The present invention belongs to a method for manufacturing oxygen-acetylene (liquefied gas) cutting nozzle and divergent cutting nozzle.
本发明属于氧-乙炔(液化气)割嘴、扩散型割嘴新的制造方法。
The determination of calcium by atomic absorption method in an air-acetylene flame is studied with emphasis on experimental conditions, its interfering factors and elimination of the latter.
本文研究了在空气-乙炔火焰中原子吸收测定钙的条件、干扰及其消除。
The determination of calcium by atomic absorption method in an air-acetylene flame is studied with emphasis on experimental conditions, its interfering factors and elimination of the latter.
本文研究了在空气-乙炔火焰中原子吸收测定钙的条件、干扰及其消除。
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