Through a study on the principle and the current situation of production technology of halogen type tin plate, the paper puts forward measures for improving the production technology.
通过对卤素法电镀锡板生产技术的原理及现状的研究，提出了生产技术的改进措施。
So more and more scientific researchers pay attention to the study on improving cotton by genetic engineering technology.
利用遗传工程技术对棉花品种进行改良的研究越来越受到广大科学研究者的关注。
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