您要查找的是不是：
- infrared beacon source 红外信标源
- The plane homed in on the radio beacon. 飞机遵循导航台信号降落。
- The news comes from a reliable source. 这消息来自可靠的来源。
- A beacon flamed out against the night sky. 灯塔在夜空衬托下闪亮。
- This is a beacon to help aircraft discover their position. 这个闪光灯是帮助飞机确定位置的。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- infrared beacon 红外信标
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- The sun is the ultimate source of energy. 太阳是能量的最基本来源。
- The philosopher's thinking was the beacon to many young people. 那位哲人的思想曾是许多青年的指路明灯。
- A source of irritation or annoyance. 令人生气的事或者引起烦恼之事
- The groundwork or source of something. 基础，根源某事物的基础工作或根源
- Where is the source of the Rhine? 莱茵河发源于何处？
- He's been a source of discord and worry. 他成为不和和烦恼的根源。
- The gunsight has an infrared lens for night vision. 射击瞄准器装有用于夜间视力的红外线镜头。
- A source of harassment, annoyance, or pain. 使人痛苦的东西骚扰，烦恼或痛苦的来源
- Is the water polluted at source or further downstream? 河水是在源头还是在流出之後受到污染的？
- Plane F103 has homed in on the radio beacon. F103号飞机已按照无线电信号飞回基地了。
- The ship was assigned to beacon the shoals. 这船被指定用来标志浅滩。
- Hard work is the ultimate source of success. 努力工作是成功之本。
