The error in division, screening and drying processes in process of preparing coal sample is analysed. The reasons of error and the corresponding countermeasure are put forward.
分析了煤样制备过程中误差的来源，包括制备过程中的缩分误差、筛分和干燥过程中产生的误差等，并对误差产生的原因提出了相应的对策。
We use traditional enrichment, screening, purification methods to select 10 degrading bacteria of 8 kinds of phenolic compounds from a soil sample polluted by phenol wastewater.
本研究利用传统的富集、筛选、纯化的方法，从受含酚废水污染的土壤中筛选出了8种酚类化合物的10株降解菌。
This test method was developed with 135 engine through screening the test condition, evaluating tests of reproducibility and distinctiveness of oil sample.
该试验方法用1 35发动机经调试、试验条件的筛选、油样的重复性、区分性评定试验等研制而成。
A hybrid system of optics and computer which controls spectrum sample and completes statistical decision has been composed. The automated screening abnormal cells has been realized.
由微计算机控制采样过程并作统计判别，完成了光学计算机混合处理系统，实现了肺癌细胞的自动筛选。
A hybrid system of optics and computer which controls spectrum sample and completes statistical decision has been composed. The automated screening abnormal cells has been realized.
由微计算机控制采样过程并作统计判别，完成了光学计算机混合处理系统，实现了肺癌细胞的自动筛选。
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