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- He varied the transmission frequency. 他变换了无线电传送的频率。
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- isotope frequency 同位素频率
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- The symbol for the isotope deuterium. 氘的化学符号同位素氘的符号
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- Its most common form, or isotope, has 146 neutrons. 它最常见的形式或者同位素有146个中子。
- IS ~(40)Ca_(20) A STABLE ISOTOPE? ~(40)Ca_(20)是否稳定?
- Simmons: Get me a sample and some isotope readings. 弄些样本和同位素读数。
- Isotope shifts and hyperfine structure spectrum[J]. 引用该论文 马洪良.
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- Changes of nuclear mass and nuclear size cause isotope shifts. 原子核质量和大小的不同引起同位素移动。
- The isotope ratio is directly used for comparing oils or gases. 同位素比率直接用于比较各种石油或天然气。
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- An hour later the next lighter stable isotope, xenon 134, appeared. 一小时之后，略轻一点的稳定同位素氙134出现。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
- I am majored in audio frequency amplifier. 我主修音频放大器。
