Flexible topology and coupling structures are used to realize transmission zeros, thereby enhancing the stop band rejection or making more flat group delay.

这种滤波器采用灵活的拓扑结构和耦合结构，可以实现传输零点，从而提高滤波器带外抑制特性，或者使群时延更加平坦。

youdao

While it has twice downplayed rumors of an upcoming Office for competing mobile platforms, supposed new screenshots and details from The Verge hint that the Redmond team's use of the word "inaccurate" wasn't a flat-out rejection.

ENGADGET

Consumers' acceptance of Wal-Mart's flat-screen TVs and other expensive gizmos is a stark contrast to their rejection of its higher-end clothing.

FORBES: Toy Scare Could Help Wal-Mart