number + megacycles
常与数字连用，表示频率。
The oscillator operates at 50 megacycles.
振荡器以50兆周运行。
兆周
每秒一百万周期；兆周；[医] 兆周
每秒一百万周期
one million periods per second
The radio transmitter operates at 100 megacycles.
无线电发射机以100兆周运行。
用法提示：megacycles作复数名词，表示频率单位兆周。
Old television broadcasts used a frequency of several megacycles.
老式电视广播使用几兆周的频率。
用法提示：megacycles作复数名词，表示频率范围。
He measured the crystal's oscillation in megacycles.
他以兆周为单位测量晶体的振荡。
用法提示：megacycles作复数名词，表示测量单位。
常与数字连用，表示频率。
The oscillator operates at 50 megacycles.
振荡器以50兆周运行。
用作定语，修饰名词。
This is a megacycle counter.
这是一个兆周计数器。
The frequency is measured in megacycles.
频率以兆周为单位测量。
grammar · medium
易错句子The frequency is 10 megacycle.
正确表达The frequency is 10 megacycles.
错误: 可数名词 "megacycle" 需要加复数后缀 -s。改正后使用了正确复数形式。
grammar · medium
易错句子The signal has a frequency of 5 megacycles per second.
正确表达The signal has a frequency of 5 megacycles.
错误: "megacycle" 本身意为"百万周每秒"，加上"per second"造成语义重复。改正后去掉多余的"per second"。
两者均表示频率单位，但兆周为旧称，兆赫为现代标准术语。
兆瓦是功率单位，而兆周是频率单位，不可混用。
Choose the next layer that will help you use megacycle with more confidence.
Recommended next
Missing: Collocations
Complete this area with collocations.
Includes Context & register & Memory tip
Analyze the context and learn memory tricks to remember it.
More ways to explore
Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Includes Spelling & sound
Explore words with similar spelling endings or sounds.
Includes Word components & Thematic vocabulary
Learn how to build related words using roots, prefixes, and thematic clusters.
Includes Idioms & Cultural references
Discover idioms, slang, and famous pop culture quotes.
Dictionary facts from ECDICT, WIKTIONARY.