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农业科学 断面质量 The cutter’s cross-section quality has a badly effect on stubble machine’s working performance and it’s popularized application, the growth of desert shrub and reproduction. 沙生灌木平茬后,切割断面质量的好坏,将直接影响切割的工作效率和沙生灌木的生长繁殖。
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Is PTH and small via hole wall quality checked by cross-section and followed by a closed loop corrective action? 是否通过切片检验pth与小导通孔孔壁状况，并有相应的改善对策跟踪？ - 2
A method of surveying cross section map is introduced unwanted center line piles. the method is simple and convenient, and can raise operational efficiency and work quality. 本文介绍一种不放线路中桩测绘横断面图的方法。该方法简单方便灵活，能提高作业效率和工作质量。 - 3
Its main work includes the Yellow river sediment cross-section tests, river bed surface quality sampling and particle size distribution analysis and so on. 其主要工作内容包括黄河河道断面淤积测验，河道表层河床质取样及颗粒级配分析等工作。
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