obs//

1.

obstetrics;产科学

2.

ocean bottom suspension (oil well);海底悬浮液(油井)

3.

Oita Broadcasting Service;大分广播局

4.

omnibearing selector;全向选择器

5.

organic brain syndrome;脑器官综合症

6.

Organization Breakdown Structure;组织细目分类结构

7.

The Observer;观察员

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