N-COUNT A PPO is an organization whose members receive medical care at a greatly reduced cost only if they use doctors and hospitals which belong to the organization. (医疗)优先供应商组织; 如果该组织成员使用属于该组织的医生和医院，医疗费用上可享受很大优惠 [美国英语] [oft N n]
...a statewide PPO plan that allows members throughout California to travel to Mexico for care.
...一个全州性医疗优先供应商组织计划使该组织在整个加利福尼亚州的成员都能赴墨西哥接受医疗。
OBJECTIVE: To prepare the monoclonal antibody of PPO and study the expression in malignant melanoma.
目的：制作PPO的单克隆抗体并研究其在恶性黑色素瘤中的表达。
The activity of PPO of lichi hull and the control effect for different inhibitor were studied in this paper.
本文对荔枝壳中多酚氧化酶(PPO)的活性及不同抑制剂的抑制效果进行研究。
Peroxidase (POD) and polyphenol oxidase (PPO) play the important roles of longan browning in period of postharvest storage.
多酚氧化酶（PPO）和过氧化物酶（POD）是影响龙眼果实采后果皮褐变的关键酶。
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