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
Good night, Marilyn.
晚安， Marilyn。
I'm studying upstairs.
我在楼上读书。
Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.
藏书使教育成为可能，而教育反过来又丰富了藏书，因为知识的增长遵循着一种“滚雪球”的规律。印刷术的发明又大大提高了知识增长的速度。