在这对夫妇的左后方还有一个闪灯，我用装在相机上的无线触发器触发它。
There's another flash going off to the left and behind the couple that I triggered with a radio transmitter attached to my camera.
全景航空相机是安装在飞机上对地面摄影的精密光学仪器，是侦察载体中的一种重要设备。
Panoramic aerial camera mounted on the aircraft is a fine optical instrument to photograph the ground scene.
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