Comparing with the former analog ones, it has good performance in accurate frequency trace and band control.

同原有的模拟处理方式相比，具有更准确跟踪频率和可控带宽等优点。

youdao

If the violence continues at its present level it will be hard enough for any American president to stop the existing dwindling band of helpers from bolting, let alone persuade new ones to put soldiers and civilians in harm's way.

ECONOMIST: America and Iraq