网上有关“hair has always been an important sign of beauty。求大神手动翻译如短文”话题很是火热，小编也是针对hair has always been an important sign of beauty。求大神手动翻译如短文寻找了一些与之相关的一些信息进行分析，如果能碰巧解决你现在面临的问题，希望能够帮助到您。
试着翻译一下。
头发总是一种美丽的标志。无论是长或短，卷发还是直发，头发总能够引起很多的关注。
一个人头上的每根头发都单独的从一种叫毛囊的皮肤里的一个管状小洞长出来的。平常人大约拥有100,000个毛囊。
真皮层内部为毛根，从皮肤表层伸出来的头发的部分被称为毛干。在头发根部的基层有个小的球状结构被称为毛球。这里是新的细胞刑形成的地方。当新细胞形成时，旧细胞会被从毛根推上去。经一段时间后，旧细胞会从血液供应中隔离并开始形成硬的蛋白质称为角蛋白。角蛋白是一种同样发现与我们皮肤与指甲的蛋白质。这些死细胞与角蛋白是毛干的组成物质。这整个的过程是头发生长的原因。
较其他毛发而言，每根头发都独立地生长。毛发的生长分为三个阶段。不是所有的毛发总是在同一时间经历相同的生长阶段生长的活跃期称为毛发生长初期。在这一时期，毛发生长大约以一天十分之三毫米的速度，或者是一个月1厘米的速度。这段时期可延续2至6年。而后是毛发生长中期。这时的毛发生长会变慢。这段时期通常延续一至三个星期。最终，毛发生长完全停止并开始脱落。这段时间被称为毛发生长后期。这总能影响到15%的头发。
平均而言，一个人会在一天中脱落50到100根头发。一旦毛发生长后期阶段结束，那么头发的生长过程会再次开始。你的基因控制你头发的生长速度以及长度。一些人会拥有比普通的毛发生长初期更长的成长过程。这些人能够比普通人长出更多的头发。
希望可以帮到你，我还是建议你可以通过查阅词典自己了解，因为里面有很多常用词组，例如make up ,cut off,不能仅仅因为是科普文而放弃，毕竟有时候考试的时候也会考到这类文章。大体意思是这样，我顺便查了百度百科里的一些知识，应该没有大错误，有的细节错了还请原谅。
暗银河系的发现及其科学意义
In addition to conventional galaxies, the universe contains very dim galaxies that until recently went unnoticed by astronomers. Possibly as numerous as conventional galaxies, these galaxies have the same general shape and even the same approximate number of stars as a common type of conventional galaxy, the spiral, but tend to be much larger. Because these galaxies ’mass is spread out over larger areas, they have far fewer stars per unit volume than do conventional galaxies. Apparently these low-surface-brightness galaxies, as they are called, take much longer than conventional galaxies to condense their primordial gas and convert it to stars—that is, they evolve much more slowly.
These galaxies may constitute an answer to the long-standing puzzle of the missing
baryonic mass in the universe. Baryons—subatomic particles亚原子粒子 that are generally protons or neutrons—are the source of stellar, and therefore galactic, luminosity, and so their numbers can be estimated based on how luminous galaxies are. However, the amount of helium in the universe, as measured by spectroscopy光谱学, suggests that there are far more baryons in the universe than estimates based on galactic luminosity indicate. Astronomers have long speculated that the missing baryonic mass might eventually
be discovered in intergalactic space星系际的空间 or as some large population of galaxies that are difficult to detect.
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另类海豹哺乳方式与众不同
Until recently, zoologists believed that all species of phocids (true seals), a pinnipped family, use a different maternal strategy than do otariids (fur seals and
sea lions), another pinniped family. Mother otariids use a foraging strategy. They acquire moderate energy stores in the form of blubber before arriving at breeding sites and then fast for 5 to 11 days after birth. Throughout the rest of the lactation (milk production) period, which lasts from 4 months to 3 years depending on the species, mother otariids alternately forage at sea, where they replenish their fat stores, and nurse their young at breeding sites. Zoologists had assumed that females of all phocids species, by contrast,
use a fasting strategy in which mother phocids, having accumulated large energy
stores before they arrive at breeding sites, fast throughout the entire lactation period, which lasts from 4 to 50 days depending on the species. However, recent studies on
harbor seals, a phocids species, found that lactating females commenced foraging
approximately 6 days after giving birth and on average made 7 foraging trips during the remainder of their 24-day lactation period.
The maternal strategy evolved by harbor seals may have to do with their small size and the large proportion of their fat stores depleted in lactation. Harbor seals are small compared with other phocids species such as grey seals, all of which are known to fast for the entire lactation period. Studies show that mother seals of these species use respectively 84 percent, 58 percent, and 33 percent of their fat stores during lactation. By comparison, harbor seals use 80 percent of their fat stores in just the first 19 days of lactation, even though they occasionally feed during this period. Since such a large proportion of their fat stores is exhausted despite feeding, mother harbor seals clearly cannot support all of lactation using only energy stored before giving birth. Though smaller
than many other phocids, harbor seals are similar in size to most otariids. In addition,
there is already some evidence suggesting that the ringed seal, a phocids species that
is similar in size to the harbor seal, may also use a maternal foraging strategy.
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pheromones是什么东东，是不是该划为odorant
There is no consensus among researchers regarding what qualifies a substance as a pheromone. While most agree on a basic definition of pheromones as chemicals released by one individual of a species which, when detected by another individual of the same species, elicit a specific behavioral or physiological response, some researchers also specify that the response to pheromones must be unconscious. In addition, the distinction
between pheromones and odorants—chemicals that are consciously detected as odors---can be blurry, and some researchers classify pheromones as atype of odorant. Evidence that pheromone responses may not involve conscious odor perception comes from the finding that in many species, pheromones are processed by the vomeronasal (or accessory olfactory) system, which uses a special structure in the nose, the vomeronasal organ (VNO),to receive chemical signals. The neural connections between the VNO and the brain are separate from those of the main olfactory system, whose processing of
odorants triggers sensations of smell. But while the VNO does process many animal
pheromone signals, not all animal pheromones work through the VNO. Conversely,
not all chemical signals transmitted via the VNO quality as pheromones. For example,
garter snakes detect a chemical signal from earthworms—one of their favorite foods—via
the VNO, and they use this signal to track their prey.
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