军舰使用电子对抗系统来干扰敌方无线电通信。

The warship used ___ECM to jam enemy radio communications.

该机构为无家可归者提供扩展个案管理服务。

The organization provides ___ECM services for homeless individuals.

医院采用了新的ECM系统来更好地管理病人的医疗记录。

The hospital adopted a new ___ECM system to better manage patient medical records.