• 结果表明工艺着色时间短、环境污染小、黑膜附着力强、光泽性

    The experimental results showed that the blackening film possessed strong adhesion, uniformity in color, excellent luster and better corrosion-and wear resistance.

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  • 覆盖黑膜花生地上部植株物质积累总量大,有利于花生荚果发育

    The dry matter accumulation of the upper plant was accelerated and increased, which was propitious to the development of peanut pods.

    youdao

  • 综述化学镀工艺方法影响因素以及黑膜性能特点

    Blackening processes for electroless nickel deposits are reviewed. Factors influencing the shades and properties of the layer are described.

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  • 并将公司形成表面溶解状况质量轧制磷铜球进行比较

    The formation of black film and surface dissolving state of the kneaded phosphorized copper ball of the company were compared with those of low quality rolled phosphorized copper ball.

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  • 研磨工件需要精确尺寸热处理、去黑膜、去、倒角、表面精铸造工件磨光之用。

    Especial finished parts need precision and have size heat treat film available for film removal, debarring of casting parts.

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  • 利用覆盖防效果明显田间杂草重比黑膜同材质透明地覆盖减少 70 。

    The effect is obvious on weed control with black film mulched, the fresh weight of weed in field is reduced 70.

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  • 然后通过因素试验分析了乳酸浓度、浸泡温度、浸泡时间三个因素对牛百叶脱黑膜效果的影响。

    And the effects of lactic acid con-centration, temperature and time are obtained by single factor test.

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  • 采用覆盖进行杨树扦插育苗试验,结果表明黑膜覆盖能够明显提高苗木质量显著降低育苗成本

    Experiment on poplar seedling cultivation with black film covering demonstrated that it could improve greatly quality of the seedling and reduce the cost.

    youdao

  • 为了使性能更好,器件还采用了低反射率矩阵光学补偿

    The display has been incorporated with a low_reflectance black matrix and optical compensation films for high_quality performance.

    youdao

  • 发现导致电镀锌钢板变发生关键因素基础,对电镀锌钢板的变机理提出了锌铅共沉积假说硫酸铅胶体假说;

    On the basis of finding that lead is the vital factor to bring patina on galvanized steel sheets, two hypothesizes, colloid film of lead sulfate and the codeposition of zinc and lead, were employed.

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  • 研究硫酸氟化氢铵、化液酸度化液温度时间质量影响

    The influence of ammonium molybdate, cobalt sulphate, ammonium bifluoride, acidity of blackening bath, blackening bath temperature and time on film quality were studied.

    youdao

  • 本文讨论诸多因素速度性能影响,确定较好的常温快速化学实用技术

    This paper work out a better applied technique of steel normal-temperature quick nigrescence via discussing various factors' influence on the speed of nigrescence and the capability of plating.

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  • 湿套袋采用外罩保温降温材料塑料袋反光延长有效嫁接2个月左右

    An insulation or cooling materials used in wet soil bagging method (such as the black plastic bag and reflective film bag etc. ) can be extended by grafting appropriate period of 2 months;

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  • 工艺配方简单,镀液稳定操作简便着色后层深牢固

    The Sn plating process features simple formulation, stable bath and convenient operation. The colored films are pitch black and durable.

    youdao

  • 工艺配方简单,镀液稳定操作简便着色后层深牢固

    The Sn plating process features simple formulation, stable bath and convenient operation. The colored films are pitch black and durable.

    youdao

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