P : the wound is painful and the sputum is difficult to expectorate .

病人：伤口疼，而且有痰又难咳出来。

A non-productive cough does not expel sputum from the respiratory tract .

干咳指不从呼吸道排出痰液的咳嗽。

The system could also diagnose sickle-cell anaemia from blood samples , while fluorescent images of a stained sputum smear were sufficient to identify the presence of tuberculosis .

用这个方法能从血液样本中查出镰刀形红细胞贫血症，染色唾液涂片的荧光图像还能诊断出是否得了肺结核。

Keep an eye on the sticky , disgusting sputum you cough and check out its color .

保持对浓痰的注意，咳嗽时关注痰的颜色。

A highly specific and sensitive fluorescent molecule can rapidly detect tuberculosis ( tb ) bacteria in sputum samples , according to work published this week in nature chemistry 1 .

科学家在本周出版的《自然化学》上发表文章称，使用一种特殊灵敏的荧光分子可以快速检测在痰标本中的结核（tb）细菌。