循环系统：过去无心悸，气急，发绀，浮肿，心前区疼痛史。
Circulating system: no palpitation, out of breath, cyanosis, edema, precordia pain history.
PYLL顺位与死因顺位不同，恶性肿瘤、损伤和中毒提升至前两位，循环系统疾病退至第三位。
The sequence of PYLL is different from death causes, with malignant neoplasm, accident and poisoning upgraded to the top two, circulatory system disease downgraded to the third.
空调循环系统中，当制冷剂回到压缩机前必须完全气化。
In circulatory system, the refrigerant must be convert became gas before returning to compressor.
负责做好开机前的预备工作，如检查设备状况、水循环系统、主机压力表等确保生产能顺利进行。
Make a good preparation work before running the machine, like check the equipment status, water circulation, pressure meter etc.
第三，由于肿瘤细胞来源的外泌体可修饰转移前微环境境[6]，从循环系统中去除这些外泌体可能可以阻止癌症的转移。
Thirdly, considering cancer-cell derived exosome can modify pre-metastasis niches [6], depleting these exosomes from circulation system is a possible option for blocking cancer metastasis.
其前5位死因为：恶性肿瘤、损伤和中毒、循环系统疾病、传染病和寄生虫病以及消化系统疾病。
The leading causes of death were malignant tumors, injury and intoxication, diseases of circulatory, infectious and parasitic diseases and diseases of digestive system.
结果该年龄段死因前5位系统疾病为：循环系统疾病，肿瘤，呼吸系统疾病，损伤、中毒和外因的某些后果，消化系统疾病。
Results The top five diseases in death causes were circulatory diseases, tumors, respiratory diseases, injuries, consequences caused by trauma, poisoning and external causes and digestive diseases.
结果该年龄段死因前5位系统疾病为：循环系统疾病，肿瘤，呼吸系统疾病，损伤、中毒和外因的某些后果，消化系统疾病。
Results The top five diseases in death causes were circulatory diseases, tumors, respiratory diseases, injuries, consequences caused by trauma, poisoning and external causes and digestive diseases.
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