您要查找的是不是:
- Fraction of Pb Zn Cd in soils are more activity than C Cr Ni Pb Cd concentration in soils increase with the applying of sludges. 土壤中Pb、Zn、Cd的存在形态相对于Cu、Cr、Ni要活跃,主要以氧化物结合态及有机物结合态存在,而污泥的施用有增加土壤中氧化物结合态Pb、Cd含量的趋势,但污泥的施用主要增加的是土壤中各种重金属残留态含量。
- The Huanggoushan Pb Zn deposit,occurring in the dolomite marble of Mesoproterozoic Zhenzhumen formation,is obviously controlled by strata. 吉林荒沟山铅锌矿床赋存于中元古界老岭群珍珠门组白云石大理岩中,层控特征明显。
- Zongshuban Pb Zn deposit occurs in the eastern part of Chenxian where the EW trending Shanhe anticlinorium meets with the SN trending Xishan anticlinorium. 枞树板铅锌矿处于EW向山河复背斜和SN向西山复背斜复合部位。
- The Houjiangqiao Pb Zn deposit features multi source, multi stage in mineralization, which is mainly related to Devonian strata and hydrothermal activity. 后江桥铅锌矿具有多源、多阶段成矿特点,成矿主要与泥盆纪地层及热液作用有关。
- The tensile properties and corrosion resistance of hot dip 55%Al Zn alloy coating steel are investigated. 研究了热浸镀 5 5%25Al Zn合金镀层钢的室温拉伸性能和耐蚀性能。
- Refer to standard method of U.S.EPA SW 846,Be Cd Cr Cu Ni Pb Zn in solid wastes of hazardous goods in the field of railway station are determined by using Q 45 microwave digestion system and AAS. 参照美国EPASW846规定的标准方法,采用Q-45型微波溶样系统消解样品,原子吸收法测定铁路桃浦危险品货站固体废渣原样、浸滤渣样、浸提液样中的重金属Be、Cd、Cr、Cu、Ni、Pb、Zn。
- Boye model plant founded in march 2003,professional producer for machine shell models,toy models,press-cast models,Zn alloy models and plastic models. 博业模具厂成立于2003年3月,专业制作机壳模、玩具模、压铸模、锌合金模等五金模、塑胶模等。
- Content of 13 elements (As Cu Pb Zn Hg Cd ect. ) in all samples were measured by ICP-AES and spectrophotometer. EF and CMB receptor model is used to make source apportiontment of the dustfall. 用ICP-AES法和分光光度法测定样品中As、Hg、Cr、Cu、Pb、Zn、S、Cd、Co、Mn、Ni、Sr、Al等13种元素的含量;
- A comprehensive method of tectonic and sedimentation analysis is employed to study the geological setting of basin, tectonics and depth process in the Jinding superlarge Pb Zn deposit. 采用构造沉积综合分析的方法,研究了金顶超大型铅锌矿床成矿的盆地、构造和深部地质背景。
- R Sere, M Zapponi, C I Elsner.Comparative corrosion behavior of 55Al - Zn alloy and Zn hot - dip coatings deposited on low carbon steel[ J ].Corrosion Science, 1998 ( 10 ) : 1711. 张中礼.;热喷涂技术在钢铁结构件防腐方面的应用[J]
- The relationships between microstructure, fracture surface and propagation behaviour of fatigue crack in TiB2 particulate reinforced ZA-8 Zn alloy and in the corresponding constitute matrix materials were studied. 研究了TiB2颗粒增强ZA-8锌合金复合材料和基体材料的疲劳裂纹扩展行为与显微组织、断口的关系。
- The results revealed that the microstructure of Mg-4%Zn alloy is significantly refined with addition of 0.3%Ca. And with increasing Ca addition the mechanical properties of Mg-4%Zn alloy are increased rapidly at first and then decreased slowly. 结果发现;只要加入0.;3%25的Ca就可使晶粒大为细化;而随着Ca含量的增加;Mg-4%25Zn-Ca合金的抗拉强度呈先快速增加后缓慢降低的趋势;
- The results show that the room temperature yield strength and tensile strength of hot dip 55%Al Zn alloy coating steel are higher than those of low carbon steel (Q235) plates, and its elongation has not reduced. 结果表明 :Q2 35钢板经热浸镀 5 5%25Al Zn合金后的室温屈服强度和抗拉强度均高于Q2 35钢 ,而伸长率没有降低。
- Keywords Thermoluminescence;Quartz;Calcite;Pb Zn deposit;Xitieshan; 热发光;石英;方解石;铅锌矿床;锡铁山;
- A Bit of Experiences in Plating on Zn Alloy 锌合金电镀经验点滴
- Satin Decorative Plating of Zn Alloy Die Castings 锌合金压铸件缎面装饰电镀
- Suitble for Pb free glazes with Ti or Zn. 适合含钛、锌无铅釉。
- Keywords Sn Zn alloy;chromating;passivation; 锡-锌合金;铬酸盐化;钝化;
- F can promote the emission of Pb,Cd,Zn and Cu. 氟会促进Pb,Cd,Zn和Cu的逸放。
- Zn alloys are being considered as substitutes for zinc, cadmium and chromium plating widely used in automobile, aviation, shipbuilding, construction, means of transportation and electronic industry. 具有耐蚀性高、延展性好、低氢脆、内应力小等优点的锌基合金镀层必将替代锌镀层、铬镀层和镉镀层,在汽车、造船、航空、建筑、交通设施和电子工业中得到广泛应用。