n.微波激射器;
例句:
1、
The atomic hydrogen maser is the most stable frequency standard allshortest measuring time interval.
氢脉泽是一种中、长期稳定度最高的原子频率标准.
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2、
Frequency of the occurance of water maser source in different outflows were given.
给出水脉泽源在不同外流中出现的频度.
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3、
The other design , the passive maser, uses the atomic resonance as a narrow bandpass amplifier.
被动型氢钟的激射器工作在振荡阈值之下,其作用与谐振放大器相似.
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