1. "Chronic" leukemias have few or no blast cells. "Chronic lymphocytic leukemia" and "chronic myelogenous leukemia" usually progress slowly compared to acute leukemias. “慢性”白血病少有或几乎没有原始细胞。与急性白血病相比，“慢性淋巴细胞白血病”、“慢性髓细胞白血病”的进程通常较为缓慢。
2. "Chronic" leukemias have few or no blast cells. "Chronic lymphocytic leukemia" and "chronic myelogenous leukemia" usually progress slowly compared to acute leukemias. “慢性”白血病少有或几乎没有原始细胞。与急性白血病相比，“慢性淋巴细胞白血病”、“慢性髓细胞白血病”的进程通常较为缓慢。
3. Abjective To investigate allergens of chronic urticaria, to prevent and treat chronic urticaria. 目的探讨各种变应原与慢性荨麻疹发病的关系，为患者的预防提供指导依据。
4. Objective To investigate the associations between severity of symptoms in men with Chronic abacterial prostatitis/Chronic pelvic pain syndrome (CAP/CPPS) and leukocyte counts. 目的探讨慢性非细菌性前列腺炎/慢性盆底疼痛综合征患者（CAP/CPPS）症状与前列腺液、按摩后尿液、精液中白细胞计数间的关系。
5. aduncus and Daphnia longispina were used to study the chronic toxicity of PGR pesticide Trichloroisocyanuric acid(TCCA) in 21d chronic test. 进行了广谱低毒农药三氯异氰尿酸对徐州长刺蚤、滇池短腹平直蚤两种枝角类的21d慢性毒性试验。
