铅的
- 与 铅的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Because of these advantages of the lead oxide, the lead oxide thin films are widely used in the transparent conductive oxide thin films, camera tube, photoconductive detector, electrode materials, gas sensor and many other fields.
本文综合论述了金属氧化物薄膜的一些主要的制备方法,氧化铅的基本性质以及在现代技术中的一些应用和最新的进展,首次采用直流反应磁控溅射方法制备了氧化铅薄膜,并研究了工艺参数对氧化铅薄膜的晶体结构,光学性质的影响。
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The result shows that the content of pigment and filler in coatings, the ratio of epoxy resin to curing agent have important effect on film performance. Comparing with basic silicon lead chromate, the antirust capacity of zinc phosphate is higher, so zinc phosphate is an excellent active pigment at safety and antirust performance.
无毒的磷酸锌与含铅的碱式硅铬酸铅两种活性颜料的防锈性能比较,在本涂料体系中以磷酸锌为活性颜料的涂膜,其防锈性能优于以硅铬酸铅为活性颜料的涂膜。
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But harm of lead is revealed in the course of application. It is an urgent problem to develop new leadless POM composites.
含铅聚甲醛复合材料,由于具有良好的自润滑性能,其应用范围不断扩大,然而在使用过程中,铅的危害不断暴露出来,迫使人们加快对无铅POM复合材料的研究步伐。
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Lead oxide is a traditional n-type semiconductor material, and it has many advantages, such as low growth temperature, simple preparation methods, high photoconductive and corrosion resistance properties.
氧化铅是一种传统的n型氧化物半导体材料,具有很多的优点,如生长温度低,制备方法简单,耐腐蚀性强,具有很好的光电特性和气敏特性等等,由于氧化铅的这些优点,氧化铅薄膜被广泛应用于透明导电薄膜、摄像、光电探测、气体敏感和耐腐蚀保护膜等领域。
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Much of the investor buying interest in lead, which had previously been a prime factor in its spiralling value, has disappeared over recent months.
大多数投资者买入铅的兴趣在最近几个月内都消失了,而投资者买入铅的兴趣是推动此前铅价螺旋上涨的主要因素。
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The detection methods of high level and trace level lead content,the status quo and technology such as pyrometallurgy and hydrometallurgy of the recycling of lead from spent lead-acid battery worldwide were introduced.
对高含量和痕量铅的检测方法、国内外从废旧铅酸电池中回收铅的现状和工艺,如火法冶金和湿法冶金进行了介绍;对废旧铅酸电池中铅回收的发展趋势进行了分析。
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Organlead and lead ion of environment waters were measured. tetraethyl lead was determined inderictly by conversion of chemical reaction, and compared with AAS, the results were satisfying.
对环境水中的有机铅及铅离子分别进行了测试,通过化学反应的转化,间接测定了汽油中的四乙基铅的含量,其结果与原子吸收方法比较,较为满意。
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The results show that under the follow conditions: pyrolysis temperature 270癈,active carbon and: ethyne black=9:l, carbon pretreated with HNOs, 7.18% Mn(NO3)2(vs. carbon support) catalyst can exhibit the best performance. In order to improve the electrocatalystic performance of MnO2, Pb(CH3COO)2 , La(NO3)3-6H2O and Ce(NO3)3-6H2O are chosen as additives of MnCVC air electrode . Electrochemical performance of the electrodes is studied by current-potential polarization curves.
为了提高催化剂的性能,选择了醋酸铅、稀土作为添加剂,采用稳态极化和交流阻抗测试方法,结果表明:铅的氧化物、稀土La和Ce可作为MnO_2催化剂的助剂来促进氧气还原反应的进行,醋酸铅添加7.5%时极化最小,在一般金属-空气电池的工作电流密度20~50mA/cm~(-2)下,电位比单独MnO_2催化剂可提升30~50mV。
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In the pot experiment, the lead ion concn. in the dry soils was set as 0, 100, 500, 1000, 2000 and 3000 mg/kg, the content of Pb in aerial parts and root of M. sativa and B. juncea were detected and the total migration amount of Pb, root tolerance index and enrichment coefficient were calculated.
方法]采用盆栽试验,土壤中铅离子浓度为0、100、500、1000、2000、3000 mg/kg干土,测定紫花苜蓿、印度芥菜地上部和根部的铅含量,计算铅的迁移总量、根系耐性指数、富集系数。
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Plants can take up excess Pb from contaminated soil and accumulate in the edible parts of the plant.
土壤是植物吸收铅的主要来源,铅污染土壤上生长的植物有可能吸收更多的铅。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。