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kryp·ton 英ˈkrɪpˌtɒn美ˈkrɪpˌtɑnAHDkrĭpʹtŏn' ☆☆☆☆☆高COCA⁷³²⁶⁶BNC⁷⁴⁴⁹⁶iWeb³⁸⁶⁴⁵ 基本英英词源搭配记法近义反义派生词例句例句 n.化氪简写符号Kr Noun: a colorless element that is one of the six inert gasses; occurs in trace amounts in air1898年5月30日,英国化学家莱姆赛和特拉弗斯在大量液态空气蒸发后的残余物中,用光谱分析首先发现了比氩重的氪,他们把它命名为krypton,来自希腊词根crypt-隐藏,因为这种气体隐藏于空气中多年才被发现。krypton oxide氧化氪krypton fluoride化 氟化氪krypton lamp氪灯 钱博士krypt=crypt,隐藏+on名词后缀→隐藏的化学物质⇒氪 词根crypt-隐藏来自希腊语。 词源解释1898年5月30日,英国化学家莱姆赛和特拉弗斯在大量液态空气蒸发后的残余物中,用光谱分析首先发现了比氩重的氪,他们把它命名为krypton,来自希腊词根crypt-隐藏,因为这种气体隐藏于空气中多年才被发现。krypt=crypt,隐藏+on名词后缀→隐藏的化学物质⇒氪。近义词 Kr化氪(=krypto… Pkrypton-water氪水
名词100% Among the most common ingredients in the water steam leaking from the Japanese reactor are iodine-131, cesium-137, xenon-133, xenon-135, and krypton-85. 来自日本反应堆里泄露出来的水蒸气里最常见的成分是碘-131,铯-137,氙-135和氪-85。 yeeyan Modeling the turbulent processes—giant impacts and extreme ultraviolet radiation, for instance— that could drive xenon fractionation leads to what Pepin calls a“ krypton problem.” 这个激烈汹涌的形成过程——例如无数的撞击,还有极端的紫外线放射照射——这些都能够把氙气分馏,也就导向 Pepin所说的一个“氪气的问题”。 yeeyan So, selenium2 minus is what's going to be isoelectronic, because if you add two electrons to selenium, you'll get the same electron configuration that you have for krypton here. 负二价的硒离子将是等电子的,因为如果你给硒原子加上两个电子,你会得到,和氪原子相同的电子排布。163 “ It so happens that if you bring a solar component in and mix it with that fractionated krypton, you get the present atmospheric composition,” Pepin explains. “如果确实是这样的话,那么你能够把太阳能的组成部分纳入,然后把它和分馏出来哦氪气混合,然后就可以获得现在大气层中的各项组成成分。” Pepin这样解释道。 yeeyan Weiss had to distill, heat and pass the air samples over adsorbents to remove gases such as carbon dioxide and krypton that could foul the extremely sensitive detector. 维斯必须蒸馏、加热并使空气样品通过吸附剂,以除去二氧化碳和氪等会污染极灵敏的探测器的气体。 yeeyan |