名詞頻繁性; [數(shù)][物]頻率，次數(shù); 頻率分布
名詞
2. This radio signal has a frequency of 800000 cycles per second.
這個(gè)無(wú)線電訊號(hào)的頻率是每秒八百千周。
3. The frequency of accidents on that road made the council lower the speed limit.
那條道路交通事故頻繁，為此市議會(huì)決定降低那里的車速限制。
4. Accidents are happening with increasing frequency.
事故正在愈加頻繁地發(fā)生。
1. 頻次：體排期中接觸到廣告信息的人口或家庭的數(shù)量.這個(gè)時(shí)間段一般為4個(gè)星期或者整個(gè)廣告運(yùn)動(dòng)持續(xù)的時(shí)間或者其他.而這個(gè)數(shù)量通常被表述為占目標(biāo)受眾的百分比.比如經(jīng)常見(jiàn)到這樣的媒介目標(biāo)描述:頻次(frequency)是指在一個(gè)確定的時(shí)間段內(nèi),
2. frequency的意思
2. frequency：f; 頻率
3. frequency：freq; 頻率;周率
1. 頻率;發(fā)生次數(shù)
The frequency of an event is the number of times it happens during a particular period.
e.g. The frequency of Kara's phone calls increased rapidly...
卡拉的電話飛速增多。
e.g. The tanks broke down with increasing frequency.
坦克越來(lái)越頻繁地熄火。
2. (聲波或無(wú)線電波的)頻率，周率
In physics, the frequency of a sound wave or a radio wave is the number of times it vibrates within a specified period of time.
e.g. You can't hear waves of such a high frequency.
如此高頻率的聲波是無(wú)法聽(tīng)到的。
e.g. ...a frequency of 24 kilohertz.
24 千赫的頻率