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为使优先数字出版在中国科技期刊中得到更好更广泛的实施,通过调查优先数字出版在科技期刊中的实施情况和《中国机械工程》部分作者的优先数字出版需求,分析优先数字出版推行过程中存在的问题.调查结果表明:优先数字出版在国内仍处于初级阶段,后续发展也并不是很理想;优先数字出版对期刊影响因子的影响不明显.提出根据不同编辑流程和编辑部规模选择适合自己的实施方案,可以使得优先数字出版工作量最小,为每篇4min.作为科技信息推广的媒介,科技期刊在认识到优先数字出版的工作量和作用后,有责任实施优先数字出版.“,”Advance digital publication of sci-tech journals is widely applied in China.The problems in the implementation of advance digital publication are analyzed by investigating the implementation of advance digital publishing in sci-tech journals and the requirements from the authors of China Mechanical Engineering.Advance digital publishing in China is still in the initial stage,and follow-up development is not very satisfactory.Advance digital publishing has little effect on journal impact factors.According to different editing processes and scales of editorial department,the smallest workload of four minutes for each article in advance digital publishing is attained by choosing their own implementation plan.As a medium for promoting scientific and technological information,sci-tech journals should take the responsibility of implementing advance digital publishing after recognizing the workload and role of advance digital publishing.