常見例句雙語例句Under normal circumstances, in order to filter at any frequency band have good frequency resolution, can be used with a broadband constant-pass filter, such as radio frequency-selective.一般情況下，爲(wèi)使濾波器在任意頻段都有良好的頻率分辨力，可採用恒帶寬帶通濾波器，如收音機(jī)的選頻。A frequency selective surface (FSS) is a metallic periodic structure with frequency selective properties. Depending upon design, it may be low-pass, high-pass, band-pass, band-stop filter.頻率選擇表麪（FSS）是具有選擇頻率功能的一塊金屬周期結(jié)搆，它可以被設(shè)計(jì)成低通、高通、帶通、帶阻濾波器。 返回 band-selective filter