单词 | unknown element |
释义 | unknown element Those who swear non-stop may feel a hitherto unknown element of self-consciousness. Times,Sunday Times The unknown element of this challenge becomes appealing. Times, Sunday Times The line originated from a hitherto unknown element later termed helium, after the source of its earliest detection. Retrieved from Wikipedia CC BY-SA 3.0 Various tests eliminated the possibility of the unknown element being thorium, radium, lead, bismuth, or thallium. Retrieved from Wikipedia CC BY-SA 3.0 Eventually he realized that the sample was gold bonded with an unknown element. Retrieved from Wikipedia CC BY-SA 3.0 |
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