If food is allowed to stand for some time, it putrefies .When the putr dịch - If food is allowed to stand for some time, it putrefies .When the putr Trung làm thế nào để nói

If food is allowed to stand for som

If food is allowed to stand for some time, it putrefies .When the putrefied material
is examined microscopically ,it is found to be teeming with bacteria. Where do these
bacteria come from , since they are not seen in fresh food? Even until the mid-nineteenth
Line century, many people believed that such microorganisms originated by spontaneous
(5) generation ,a hypothetical process by which living organisms develop from nonliving
matter.

The most powerful opponent of the theory of spontaneous generation was the French
chemist and microbiologist Louis Pasteur(1822-1895).Pasteur showed that structures
present in air closely resemble the microorganisms seen in putrefying materials .He did
(10) this by passing air through guncotton filters, the fibers of which stop solid particles. After
the guncotton was dissolved in a mixture of alcohol and ether, the particles that it had
trapped fell to the bottom of the liquid and were examined on a microscope slide .Pasteur
found that in ordinary air these exists a variety of solid structures ranging in size from
0.01 mm to more than 1. 0mm .Many of these bodies resembled the reproductive
(15) structures of common molds, single-celled animals, and various other microbial cells.
As many as 20 to 30 of them were found in fifteen liters of ordinary air ,and they could
not be distinguished from the organisms found in much larger numbers in putrefying
materials .Pasteur concluded that the organisms found in putrefying materials originated
from the organized bodies present in the air .He postulated that these bodies are constantly
(20) being deposited on all objects.

Pasteur showed that if a nutrient solution was sealed in a glass flask and heated to
boiling to destroy all the living organisms contaminating it, it never putrefied .The
proponents of spontaneous generation declared that fresh air was necessary for
spontaneous generation and that the air inside the sealed flask was affected in some way
(25) by heating so that it would no longer support spontaneous generation. Pasteur constructed a
swan-necked flask in which putrefying materials could he heated to boiling, but air
could reenter. The bends in the neck prevented microorganisms from getting in the flask.
Material sterilized in such a flask did not putrefy.
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Kết quả (Trung) 1: [Sao chép]
Sao chép!
If food is allowed to stand for some time, it putrefies .When the putrefied material
is examined microscopically ,it is found to be teeming with bacteria. Where do these
bacteria come from , since they are not seen in fresh food? Even until the mid-nineteenth
Line century, many people believed that such microorganisms originated by spontaneous
(5) generation ,a hypothetical process by which living organisms develop from nonliving
matter.

The most powerful opponent of the theory of spontaneous generation was the French
chemist and microbiologist Louis Pasteur(1822-1895).Pasteur showed that structures
present in air closely resemble the microorganisms seen in putrefying materials .He did
(10) this by passing air through guncotton filters, the fibers of which stop solid particles. After
the guncotton was dissolved in a mixture of alcohol and ether, the particles that it had
trapped fell to the bottom of the liquid and were examined on a microscope slide .Pasteur
found that in ordinary air these exists a variety of solid structures ranging in size from
0.01 mm to more than 1. 0mm .Many of these bodies resembled the reproductive
(15) structures of common molds, single-celled animals, and various other microbial cells.
As many as 20 to 30 of them were found in fifteen liters of ordinary air ,and they could
not be distinguished from the organisms found in much larger numbers in putrefying
materials .Pasteur concluded that the organisms found in putrefying materials originated
from the organized bodies present in the air .He postulated that these bodies are constantly
(20) being deposited on all objects.

Pasteur showed that if a nutrient solution was sealed in a glass flask and heated to
boiling to destroy all the living organisms contaminating it, it never putrefied .The
proponents of spontaneous generation declared that fresh air was necessary for
spontaneous generation and that the air inside the sealed flask was affected in some way
(25) by heating so that it would no longer support spontaneous generation. Pasteur constructed a
swan-necked flask in which putrefying materials could he heated to boiling, but air
could reenter. The bends in the neck prevented microorganisms from getting in the flask.
Material sterilized in such a flask did not putrefy.
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Kết quả (Trung) 2:[Sao chép]
Sao chép!
如果食物静置一段时间后,它putrefies。当腐烂材料
是用显微镜检查,发现是与细菌浇铸。在哪里?这些
细菌来自何方,因为他们没有看到新鲜的食物?甚至直到中期19
号线世纪,很多人认为源于自发的微生物
(5)代,一个假设的过程,其中活的生物体,从非生命发展
的事情。自然发生论的最强劲的对手是法国化学家,微生物学家巴斯德(1822年至1895年).Pasteur表明结构中存在的空气接近于见于腐烂的材料。他所做的微生物中通入空气guncotton过滤器(10),这一点,其中的纤维阻止固体颗粒。后的guncotton溶于乙醇和乙醚的混合物,它已经在颗粒捕集倒在液体的底部,并进行了检查在显微镜载玻片.Pasteur 发现,在普通空气中,这些存在的各种立体结构的大小范围从0.01mm到多于10毫米。许多这些组织的类似的生殖普通模具,单细胞动物,和各种其它的微生物细胞(15)的结构。多达20至30其中被发现在十五公升一般的气息,他们也无法从发现更大的数字中腐烂的生物区别开来的材料.Pasteur的结论是,腐烂的材料中发现的生物起源来自空气中的。他的组织机构推测,这些机构都在不断(20)沉积在所有对象。巴斯德表明,如果营养液被密封在一个玻璃烧瓶中,并加热至沸腾,以破坏所有的活生物污染,它从未腐烂.The 自发产生的支持者宣称,新鲜空气是必要的自发产生并且,该密封的烧瓶内的空气受到影响以某种方式(25),通过加热使之不再支持自发产生。巴斯德构成的天鹅颈烧瓶中,腐烂物质可能他加热至沸腾,但空气可以重新输入。在颈部的弯曲防止微生物从得到在该烧瓶中。材料灭菌以这样的烧瓶中并没有腐烂。
























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Kết quả (Trung) 3:[Sao chép]
Sao chép!
如果食品是允许站有一段时间了,它腐烂。当腐烂的物质
显微镜检查,发现它是充满了细菌。为什么这些
细菌的来源,因为它们不新鲜的食物呢?直到第十九世纪中期
线,许多人认为这种微生物来源于自发的
(5)代,由生物开发生命
物一个假设的过程。

的自发产生的理论的最强大的对手是法国
化学家和微生物学家路易斯巴斯德(1822-1895)。巴斯德表明,结构在空气中
酷似腐烂的材料中看到的微生物。他
(10)本文通过空气通过火棉滤波器,其中纤维阻止固体颗粒。在
的硝化棉溶解在乙醇和乙醚的混合物,它有
困倒液体的底部,在显微镜下检查颗粒。巴斯德
发现在普通空气中存在多种固体结构的尺寸范围从0.01毫米到1多
。0mm。许多这些机构与生殖
(15)常见的模具结构,单细胞动物,和其他的微生物细胞的各种。
多达20至30在十五升的普通空气的发现,他们可以
不区分生物在腐烂的
材料大量发现。巴斯德认为,从组织机构在空气中存在的腐败物质是
发现的有机体。他认为这些机构不断
(20)被沉积在所有的对象。

巴斯德表明,如果营养液在密封的玻璃瓶,加热至沸腾
摧毁所有生物污染它,它永远不会腐烂的
。自发产生的支持者宣称,新鲜空气
自发产生是必要的,在密封瓶空气以某种方式
影响(25)通过加热使它不再支持自然生成。巴斯德建立了一个
天鹅颈烧瓶中腐烂的材料可加热至沸腾,但空气可以进入
。在颈部弯曲,防止微生物进入烧瓶。
材料在这样一个瓶消毒不腐烂。
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