Objective: To establish a highly efficient production system of chimeras by perfecting and normalizing the key steps of technology system of gene knockout mice.
目的：完善和规范基因剔除小鼠技术体系的关键技术环节，建立一套高效的嵌合体制备体系。
In this paper the high efficient technology of virus free minituber production of potato under cold condition in the cold area of northwestern Hebei was studied.
试验研究了在冀西北高寒区冷凉气候条件下脱毒微型薯的高效生产技术。
It is suggested to intensify the development of efficient Ag-catalysts, to raise production technology of ethylene glycol, to enhance technical management, and to reduce production costs.
分析了国内外乙二醇的生产、消费、进出口情况以及主要生产商的竞争态势，建议加强高效银催化剂的研制开发，提高乙二醇生产技术，加强技术管理，降低生产成本。
The development of more efficient and more sustainable production technology demands great efforts.
开发出更有效和更具可持续性的生产技术需要付出大量的努力。
For the petroleum enterprise, efficient exploitation and utilization of petroleum science and technology archives can provide effective services for increase in oil reserve and production.
对于石油企业来说，搞好石油科技档案的开发利用，就能为增储上产提供有效的服务。
Except for the production of paper printing, has been outside, we have also developed a series of efficient and environmentally friendly, energy-saving offset printing technology.
除了一直生产的纸制品类印刷以外，我司还开发了一系列高效、环保、节能的柯式印刷技术。
Except for the production of paper printing, has been outside, we have also developed a series of efficient and environmentally friendly, energy-saving offset printing technology.
除了一直生产的纸制品类印刷以外，我司还开发了一系列高效、环保、节能的柯式印刷技术。
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