mechanical sampling and preparation
mechanical sampling and preparation
机械取样和制备
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Attentions and solutions were put forward in this paper according to some practical problems in manual sampling, mechanical sampling, sample preparation and analysis, etc.
针对燃煤电厂在人工采样、机械化采样、制样和化验等方面的一些实际问题，提出了应注意的事项及解决办法。
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