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The boron deficiency plant appears inter-venial chlorosis, thickening, crisping leaves and increased leaf weight ratio (LWR).

缺硼使叶重比(LWR)提高和叶片脉间失绿、变厚、变脆。

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Crystalline polypyrene microsheets were electrosynthesized in the medium of boron trifluoride diethyl etherate for the first time.

在三氟化硼乙醚介质,电聚合芘首次制晶型的聚芘微米片。

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Reaction of ferrocenylphenylcarbinol with ethereal solution of boron trifluoride in dichloride methane formed the relevant ferrocenylphenylmethyl carbocation.

二茂铁基苯基甲醇与三氟化硼-乙醚溶液在二氯甲烷中作,形成二茂铁苯基甲基碳正离子。

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By fuming with sulfuric-phosphoric acid mixture the residual hydrofluoride was then expelled,and boron was finally determined by curcumin spectrophotometry after distillation.

同时,对所拟溶样条件下所得硼的分析果是硼问题进行了进一步探讨,果证实,所拟溶样条件下硼的测定

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An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac...

溴酚蓝对DMDAAC进行定性分析,四苯硼酸钠及折光率法进行定量分析的方法进行了探讨。

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Only small amounts of wurtzite boron nitride and lonsdaleite exist naturally or have been made in the lab so until now no one had realised their superior strength.

天然存在或者实验室制造的纤锌矿型氮化硼和朗斯代尔石数量很少,直到现在,也没有一个人发现它们令人吃惊的硬度。

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经济学人-科技

The navy's notice suggests, though, that boron is back.

然而,海军的公告表明又回来了。

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世界历史百科全书

Boron does not, however, introduce the quest for the Grail that would come later.

然而,鲍伦并没有介绍后来对圣杯的探索。

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博兹曼科学——化学

If we go to boron then, how are we going to write boron?

那么, 如果, 们将如何写?

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博兹曼科学——化学

Well, when we go to boron what's happening is it's actually going into a new orbital.

嗯,当们讨论时,它实际上进入了一个新的轨道。

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Reel知识卷轴

The only way you can get boron down there, is by the foundering of the ocean crust.

钻石的唯一来源就是海洋地壳的沉没。

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VOA Special 2018年8月合集

Scientists already knew these diamonds received their blue color from the element boron.

科学家们已经知道钻石的蓝色来自元素。

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VOA Special 2018年8月合集

Over millions of years, the boron continued to move deep underground.

数百万年来,续向地下深处移动。

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TED-Ed(视频版)

An implanter then accelerates boron or phosphorus ions and slams them into the patterned openings.

然后,离子注入机加速或磷离子,并将它们打入图案化的开口中。

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Crash Course Pods: The Universe

And so you get like beryllium and boron and a little bit of lithium.

于是你就得到了像铍和以及少量的锂样的元素。

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GQ — 明星们的代表角色

Super hardened boron, sharpened with a CO2 laser.

- 超级化的,用二氧化碳激光锐化。

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Boost Your Biology with Lucas Aoun

And then, obviously, combining that with like boron, tonkaroly, magnesium, And then also optimizing thyroid.

然后,显然,将、托卡罗利、镁结合,同时优化甲状腺功能。

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经济学人(汇总)

America's air force experimented in the 1950s with stuff nicknamed zip fuel, which was laced with compounds of boron called boranes.

美国空军在20世纪50年代试验了一种叫做拉链燃料(高型能的飞机燃料)的东西,种燃料含有的化合物。

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经济学人-科技

So far, the researchers involved have managed to produce one that is 40% boron and yet burns more or less completely.

到目前为止,参研究的研究人员已经成功制造出了一种含有40%且几乎可完全燃烧的燃料。

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经济学人-科技

Boron additives in rocket fuels also failed. The combustion process involved proved unexpectedly complex, and the promised additional energy was not forthcoming.

火箭燃料中的添加剂也失败了,其中涉及的燃烧过程出乎意料地复杂,而且所承诺的额外能量并没有到来。

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On Purpose with Jay Shetty

A lot of trace minerals like selenium and boron and zinc, we get those in our food.

许多微量元素,如硒、和锌,们都可以从食物中获取。

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科技智慧坊

However, ion implanters only add around one atom of phosphor or boron for every 10,000 atoms of silicon.

然而,离子注入机每次只能为每10000个硅原子添加大约一个磷或原子。

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经济学人 Books and arts

The boron control rods used to slow reactions were tipped with graphite meaning that during an emergency shutdown.

用于减缓反应的控制棒顶端装有石墨,意味着在紧急停机时。

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经济学人(汇总)

Boron does, though, burn like billy-o, generating a bright, green flame and releasing about 40% more energy per kilogram than conventional aviation fuel.

不过确实可以快速燃烧,产生明亮的绿色火焰,每千克要比传统航空燃料多释放约40%的能量。

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趣味化学实验:Periodic Videos

Boron is an interesting element. It is one of the few that I have actually made myself when I was at school.

是一种有趣的元素。上学时亲手制备的少数几种元素之一。

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Boost Your Biology with Lucas Aoun

I've sort of looked at some other strategic ways to like, how do we lower SHBG without boron, without tonkara-li, without magnesium?

差不多研究了一其他的战略方法,比如如何在没有、没有托卡拉利、没有镁的情况下降低性激素结合球蛋白。

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