Headend frequency converter
[计] 头端变频器
🧩 词语组成解析
[计] 头端器
frequency
['frikwənsi]
n. 频繁性;[数][物]频率，次数;频率分布;
fr + equ =equal,even,表示“相等，平均” + enc + y [形容词后缀] → n.屡次；次数；频率
converter
[kən'vɜ:tə(r)]
n. [自]变换器;换流器，变压器，变频器;[冶]炼钢炉，吹风转炉;使转变[改变信仰]的人;
🗣️ 情景例句
What's the deadline for claim?
索赔的有效期多长？
The doctor is busy examining a patient.
医生为给病人做身体检查而忙碌着。
First the electroencephalograph (which is simply a device for recording the electrical activity of the brain by attaching electrodes to the scalp) shows that while there is a change in the pattern of activity during sleep,
第一点，脑电图记录仪（不过是一种把电极接到头皮上记录脑电活动的仪器）显示，人在睡眠时大脑活动的方式有变化，