Objective To probe the quality control in acid fast stain test of sputum smear.

目的探讨痰涂片抗酸染色检查的质量控制办法。

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Objective To explore the value of acid-fast stain test of mycobacterium tuberculosis in the diagnosis of pulmonary tuberculosis.

目的了解结核分枝杆菌抗酸染色对肺结核的诊断价值。

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These desulfurizing agents proved to be excellent: reducing the total sulfur of LPG significantly and making the grade of copper stain test go down from 3 to 1.

结果表明，该脱硫剂脱硫效果很好，使液化气的铜片腐蚀从3级降至1级，总硫明显下降。

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Mr Jarman told the court he had conducted experiments to test this theory - but he never achieved a similar stain.

BBC: Stephen Lawrence murder: Dobson and Norris found guilty