That meant thousands of stars, galaxies, and other objects nearby were candidate progenitors of the detected bursts.

这意味着附近的数千颗恒星、星系和其他物体都是探测到的伽玛射线爆的先。

These are stem cells and the more developed neural progenitor cells.

这些是干细胞及更高级的神经前体细胞。

Many cite him as one of the progenitors of the modern short story.

他也被认为是现代短篇说的先驱。

The tendrils form as the material expands into the gas and dust that surrounded the progenitor star.

这些卷须是在物质膨胀成环绕在恒星周围的气体和尘埃时形成的。

I suspect this is why we see so many weird and fantastic shapes in planetaries: their progenitor stars swallowed their planets.

它们的先恒星它们的行星。

Now, the vast majority of bone marrow is made of hematopoietic cells which are the early progenitor cells that can differentiate into other cell types.

大部分骨髓由造血细胞形成；造血细胞是可以分化为其他类型细胞的原始细胞。

If they go to the bone marrow, they can crowd out normal bone marrow progenitor cells and decrease the number of healthy red blood cells, white blood cells and platelets.

如果它们进入骨髓，则会抑制正常的骨髓细胞的生长，减少健康红细胞、白细胞和血板的数量。

B cells and NK cells complete their development where they started - in the bone marrow, whereas some lymphoid progenitor cells migrate to the thymus where they develop into T cells.

B细胞和NK细胞在它们产生的地方（骨髓中）完成发育，而一些淋巴系组细胞会迁移到胸腺，在那里它们发育成为T细胞。

First, they will kill some of these neural cells themselves that are responsible for forming part of the brain and, also, it will slow down the growth of these neural progenitor cells if they're not bad yet.

首先，这种病毒会杀死形成部分脑体的神经细胞，同时会减缓未变坏神经前体细胞的生长速度。