Active and passive modes were presented and have been used to stabilize the output power of the laser.
进一步对稳定激光器输出作了研究，提出并实施了两种方案：主动式和被动式，取得了一定的效果。
参考来源 - 环形腔掺铒光纤激光器·2,447,543篇论文数据，部分数据来源于NoteExpress
确认端口或配置的端口是主动式的且链接已建立。
Verify that the ports, or ports configured, are active and the link is up.
确认端口或配置的端口是主动式的且链接已建立。
Verify that the ports, or ports configured, are active and that the link is up.
使用针对主动式标签的设备接口提供实时的位置跟踪服务。
Delivery of real-time location tracking services with device interface for active tags.
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