采用石墨炉原子吸收法，测定了铁矿石、球团矿和烧结矿中微量杂质砷。
It was reported that trace amounts of arsenic in iron ores, spherical ores and sintering ores were determined by GFAAS.
前言：采用石墨炉原子吸收法，测定了铁矿石、球团矿和烧结矿中微量杂质砷。
It was reported that trace amounts of arsenic in iron ores, spherical ores and sintering ores were determined by GFAAS.
还用原子吸收光谱法测定了产品中微量杂质的含量，对改进生产工艺具有指导作用。
The trace impurity in product has been determined by A A S. it is important to improve process.
催化剂颗粒形态对ECP中微量杂质成分非常敏感，ECP的质量是影响催化剂粒形最主要的原因。
And the quality of ECP has the up-most effect on the morphology of catalyst particle.
将微量杂质对再结晶的阻碍作用转化为再结晶自由能变化，从而建立微量杂质作用下的能量转化模型。
The principles of construction process mechanics, energy transformation of surrounding rock and support, and time-space effect of construction have been developed and explained.
电解重水制备d 2中常含有微量杂质n2，为降低N2含量，选择锆铁钛吸气剂高温对n 2进行脱除。
The getter was chosen to remove N2 in D2 which was prepared by electrolyzing heavy water in high temperature.
用标准加入法测出氧化铕基准中的微量杂质元素，消除了由于忽略基准中的杂质元素的含量给分析测定带来的误差。
Determining trace impurity element of the standard europium oxide by the standard addition method. So the errors owing to neglecting the impurity in the standard are eliminated.
它含有高浓度的杂质和不安全的各级微量元素。
It contained high levels of impurities and unsafe levels of trace elements.
用活性白土做脱酚剂去除双酚A中的微量苯酚及其杂质，其去除率可达99％以上。
The trace phenol and impurity were removed from the bisphenol A with active white soil as dephenolizer, and its rate is more than 99%.
脱色的目的在于去除色素、微量金属、皂粒、胶质、残留农药和其它的杂质。
The purpose of bleaching is to wipe off some pigment minim-metal , soap, lecithoid , remnant pesticide and other impurity.
热法磷酸中含有少量重金属杂质，主要是铅以及微量的锌、铜、镍、锰、铬和镉等。
Hot-process phosphoric acid contains a little impurities which are mainly Pb and very little Zn, Cu, Ni, Mn, Cr and Cd.
探讨了施主杂质、受主杂质等微量元素及玻璃料对PT C陶瓷性能的影响。
Effects of donors, acceptors, and other trace elements and the frit on properties of the PTC ceramics are discussed.
由于气相色谱对H_2的检出灵敏度特高，可作为对菱铁矿中含有羟基结构的微量粘土及其矿物杂质的检测方法，反之亦然。
The gas chromatography has extremely high sensibility to identify H_2, so it is a method to detect siderite which contains micro clays and impurity minerals with OH groups, vice versa.
丙烯中微量烃类杂质的含量对丙烯的聚合反应、催化剂的得率、丙烯的转化率以及产品的等规度都有较大的影响。
Contents of trace hydrocarbons in propylene have large influences on polyreaction of propylene, yield of catalyst, transformation ratio of propylene and degree of isotacticity of products.
丙烯中微量烃类杂质的含量对丙烯的聚合反应、催化剂的得率、丙烯的转化率以及产品的等规度都有较大的影响。
Contents of trace hydrocarbons in propylene have large influences on polyreaction of propylene, yield of catalyst, transformation ratio of propylene and degree of isotacticity of products.
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