行星状星云在数万年间逐渐衰老。
Planetary nebulae fade away gradually over tens of thousands of years.
姜黄素对肝星状细胞增殖与凋亡的影响。
Effect of curcumin on proliferation and apoptosis of hepatic stellate cell line.
这不是星状体的影像。
苞片和花萼星状毡毛状。
我的眼睛不是星星状的。
l天琴座中的环状星云是最著名的行星状星云。
L the Ring nebula in Lyra is the best-known of the planetary nebulae.
目的探讨雌二醇对肝星状细胞的影响及其可能的作用途径。
Objective To analyze the effect of estradiol on the function of hepatic stellate cells.
尽管他当时并不知道，这是首个被记录在册的行星状星云。
Although he did not know it at the time, this was the first in a class of objects, now known as planetary nebulae, to make it into the catalog.
具有代表性的是，构成行星状星云的恒星已经存活了十亿年。
Stars that form planetary nebulae typically live for billions of years.
大约50亿年后，我们的太阳死去时，也会变成行星状星云。
Our own sun will blossom into a planetary nebula when it dies in about five billion years.
常见的雪花很薄，而且是类如盘状的晶体，有六片分枝形成了星状。
These common snowflakes are thin, plate-like crystals with six broad arms that form a star-like shape.
行星状星云是一类孤立的气体星云，具有相当程度的双侧对称性。
Planetary nebulae are a type of isolated gaseous nebulae possessing a fair degree of bilateral symmetry.
辐形对称16点星状的支柱结构，其灵感来源于阿拉伯国家的图案。
The placement of support columns is based on a radially symmetrical 16-point star pattern and is inspired by Arabic patternmaking.
猫眼星云(NGC 6453)是天空中最著名的行星状星云之一。
The Cat's Eye nebula (NGC 6543) is one of the best known planetary nebulae in the sky.
因此，一个疏散星团很少能够存活到它内部的某个成员变成行星状星云。
Hence, it is rare that an open cluster survives long enough for one of its members to form a planetary nebula.
行星状星云是当一个恒星的中心核聚变反应不再能支持其结构时而形成的。
These are formed when the nuclear fusion reactions at the centre of a star can no longer support its structure.
NGC2818是银河系中少数几个位于疏散星团内部的行星状星云之一。
NGC 2818 is one of very few planetary nebulae in our galaxy located within an open cluster.
直到现在，星状细胞依然被认为是在脑神经细胞的发育和营养方面扮演着重要角色。
Until now, astrocytes were thought to have their main role in the development and nutrition of the brain's nerve cells.
也被称作阿贝尔21，水母星云是双子座中一个1500光年远的年老行星状星云。
Also known as Abell 21, this Medusa is an old planetary nebula some 1, 500 light-years away in the constellation Gemini.
这样的恒星最终炸开了它们的外层物质，形成了向外扩展的气体盔甲，名为行星状星云。
Such stars eventually blow off the material of their outer layers, which creates an expanding shell of gas called a planetary nebula.
肝星状细胞是一种与肝纤维化密切相关的主要的细胞种类，它在肝受到损伤时形成瘢痕组织。
HSCs are the major cell type involved in liver fibrosis, which is the formation of scar tissue in response to liver damage.
在跳跃的颜色中烁烁发光的行星状星云(就像上面这颗)向人们描绘出垂死恒星的最后色彩。
Glowing in vibrant colors, planetary nebulae, such as this one, represent the death rattles of dying stars.
虽然行星状星云阶段持续约1万年，天文学家估计其外晕的丝状物质年龄在5万至9万年间。
While the planetary nebula phase is thought to last for around 10, 000 years, astronomers estimate the age of the outer filamentary portions of this halo to be 50, 000 to 90, 000 years.
在大脑中，一部分神经细胞和单个的神经突触经常附着的星状细胞，也就是星形胶质细胞上。
In the brain, parts of nerve cells and single synapses are often enclosed by star-shaped cells, the astrocytes.
在大脑中，一部分神经细胞和单个的神经突触经常附着的星状细胞，也就是星形胶质细胞上。
In the brain, parts of nerve cells and single synapses are often enclosed by star-shaped cells, the astrocytes.
应用推荐