o β中文什么意思

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1. The hot, massive, high-luminosity stars of spectral types o and b are not distributed uniformly over the galaxy but are grouped into extensive, separate aggregates that have come to be called associations .
   O型和B型的大质量高光度热星在银河系中分布并不均匀，而是聚集成为分开的大星群，即所谓星协。
2. It can ' t be the mailman . it ' s only seven o ' clock
   不可能是邮差。现在只有七点钟。
3. O deep thought , we were told that there is a gun
   噢，深思有人告诉我们这有只枪
4. Aerospace series - elastomeric o - rings - dimensions
   航空航天系列.弹性o型圈.尺寸
5. Study on structure of i o table based on erp
   的机械制造企业投入产出表结构及分析