Narrow band filter
[计] 窄带滤波器
🧩 词语组成解析
narrow
['næro]
adj. 狭隘的;狭窄的;（种类或数目）有限的;仔细的，精确的;
vt. 限制，限定;（使）变窄;变得更窄;收缩;
n. 海峡;狭路，隘路;狭窄的水道;
vi. 变窄;
band
[bænd]
n. 带;乐队;衣带;价值;
vt. 给…镶边;用带绑扎;（将价格、收入等）划分档次;把…联合起来;
vt.& vi. 结合起来，伙同;
vi. 聚集，联合（起来）（通常与together 连用）;
band(to bind)→皮带；带子；条纹；乐队
filter
['fɪltɚ]
n. 滤波器;滤光器;滤色镜;[化] 过滤器;
vi. 过滤;透过;渗透;
vt. 过滤;滤除;
🗣️ 情景例句
I'm retired.
我退休了。
I'm willing to adopt your plan.
我愿意采用你的计划。
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，