专业释义英英释义
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气体常数(universal gas constant)的符号基(radical)的符号仑琴 (roentgen)伦琴 (roentgen)
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[俚语]roger
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比率(ratio)的符号
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气体常数(universal gas constant)的符号
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restricted内部文件
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电阻(resistance)的符号
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记录 (record)
·2,447,543篇论文数据，部分数据来源于NoteExpress
r [ ɑ: ]
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n.
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a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
同义词： roentgen
- (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole
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the 18th letter of the Roman alphabet
同义词： letter r
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the length of a line segment between the center and circumference of a circle or sphere
同义词： radius
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a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
以上来源于: WordNet
柯林斯英汉双解大词典
R /ɑː/ (also r)
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1.
N-VAR R is the eighteenth letter of the English alphabet. 英语字母表的第18个字母
双语例句原声例句权威例句
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Q comes between P and R in the English alphabet.
英语字母表中，Q在P和R之间。
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Businesses need to train their workers better, and spend more on R & D.
各企业需要更好地培训其员工，并且在研发上有更多的投入。
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下一个字母是“R”。
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The American Food and Drug Administration says R.F.I.D.tags act like an electronic safety net to make it easier to catch counterfeits.
VOA: special.2010.03.01
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R/Cv OK, so that means that this is really instead of -1 R over Cv. it's really gamma minus one.
现在,变成了γ
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I can't remember their names either, but their last names begin with "R" and "S" and "A".
我也记不住他们的名字，但他们的姓氏是由“R”，“S”和“A”开头的。
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