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Then their synthese speed slows down.But the synthese of RNA and DNA inthe follicular cell is continuous during vitellogenesis, which may relate toformation of livetin.

上皮细胞在卵母细胞卵黄形成期,它的RNA和DNA的合成均较快,因此认为上皮细胞合成分泌了一些物质与卵黄蛋白的形成。

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Among them, the transition metals promoted dearomatization proceed under mild reaction conditions with various substrates, and which could be applied for synthesis of bioactive compounds.

其中,过渡与的脱芳构化反应,反应条件温和、反应底物广泛,可应用于生物活性物质合成

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宇宙奥秘

According to Landua, the synthesis of one gram of antimatter with current technology would cost about 1,000 trillion dollars.

根据兰杜阿的说法,用目前的技术合成一克反将耗资约一千万亿美元。

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2018最热精选合辑

That, along with it containing tyrosine, an amino acid that aids neurotransmitter production, may make it hard to get some rest if you have a bunch of protein before bed.

因为它含有酪氨酸,酪氨酸是一种帮助合成神经传递的胺基酸。因此果你在睡前食用白质类食品,便可能造成睡眠困难。

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环境与科学

Gistex's produce is mainly polyester fabric, a synthetic material that requires a lot of chemicals.

Gistex 的产品主是聚酯织,一种大量化学合成材料。

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Kurzgesagt 科普动画(双语精选)

But there are synthetic substances as well.

但也有合成

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It's a synthetic substance that happens to be the lightest solid known to man.

这是一种合成是人们所知道的最轻的固体。

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少儿畅学课堂

They make things that the cell needs, like proteins!

核糖体合成白质!

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经济学人-科技

They have also discovered that the shells of many organisms in the area are short of aragonite, a form of calcium carbonate that gives them strength, but whose formation acid discourages.

他们也发现,这里许多生的外壳缺少文石—一种让这些生产生力量的碳酸钙形式—但是,它们体内的酸性形式阻碍了这种合成

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《卫报》(文章版)

His team was looking for substances that could soften synthetic fabrics, such as polyester, which is made from the same kind of plastic used in most beverage bottles.

他领导的团队原本在寻找能够软化合成纤维的用于制造大多数饮料瓶的塑料材料聚酯纤维。

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VOA常速英语(视频版)- 2025年合集

These things are synthetic, meaning they're xenobiotics, meaning they're foreign to the body, meaning they'll stimulate inflammation, and inflammation is intimately tied to carcinogenesis.

这些合成的,也就是说它们是外源性化合,意味着它们对人体是异,会刺激炎症,而炎症与癌症的发生密切相关。

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Scishow 精选系列

However, paradichlorobenzene is also listed as a compound that's thought to be a human carcinogen, though there haven't been any major human studies.

然而,尽管目前还没有主流的对人的研究,但是二氯苯也同样被列为化学合成,它也被认为是人类致癌

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VOA 常速 2016年2月合集

A gelatin-like substance engineered in thelaboratory of the Massachusetts Institute of Technology shields those cells from the attack.

麻省理工学院实验室合成的这种胶状能保护细免受侵害。

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科学60秒-科学美国人 2023年8月合集

In ophthalmology, a synthesized form of the same chemical can still be used to help dilate the pupils.

在眼科,这种化学合成仍可以用来帮助扩大瞳孔。

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CNN 10 学生英语 2024年4月合集

These synthetic chemicals were developed in the 1940s that are used to repel oil and water.

这些合成化学在 20 世纪 40 年代被开发出来,用于防油防水。

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宇宙奥秘

The only obstacle to the creation of mega powerful weapons or fuel is the inability to synthesize antimatter in large volumes.

制造超级强大武器或燃料的唯一障碍是无法大量合成

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SciShow - Chemistry

It's made from soda ash, which at the time, it came from the ashes of sodium-rich marine plants like seaweeds, or it was made synthetically by reacting table salt, also known as sodium chloride, with other chemicals and minerals.

它由苏打灰制成,当时纯碱来自海藻等富含钠的海洋植的灰烬, 或者是通过食盐(也称为氯化钠) 与其他化学和矿反应合成制成的。

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DISGRACELAND

Revenge for Charlie against Terry Melcher for not making him a rock and roll star because, after all, Charles Manson was nothing more than a delusional hippie with zero musical talent coursing through his synthetically-infused veins.

查尔斯·曼森对泰瑞·梅尔彻的报复, 是因为梅尔彻没有将他打造成摇滚明星。毕竟,曼森不过是一个妄想的嬉皮士, 他那被合成充斥的血管中流淌着的是毫无音乐天赋的血液。

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CNN 10 学生英语 2017年2月合集

Opioids are synthetic substances that act like heroin.

阿片类药是作用类似于海洛因的合成

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学生科学报

Biologics get their name from the fact that they are not simple lab-made chemicals. Instead, they are large molecules, such as proteins, produced by living organisms. Some can even be whole genes.

制剂得名于它们并非简单的实验室合成化学。相反,它们是由生体产生的大分子,白质。有些甚至可以是完整的基因。

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Boost Your Biology with Lucas Aoun

I'd like to talk to some more, let's say bodybuilding coaches about how I think, I think like they look at a certain anabolic and it can't be aromatized.

我想和一些健身教练多聊聊, 我认为,他们看待某种合成代谢时, 认为它无法被芳香化。

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经济学人 Science and technology

A third line of research depends on the fact that serotonin is made from tryptophan, a substance the body cannot synthesise, and so must ingest from food.

第三个研究方向取决于血清素是由色氨酸制成的事实,色氨酸是一种人体无法合成, 因此必须从食中摄取。

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