flash synchronizer

例句：

1. 1. The flash synchronizer is used to ensure that the camera's shutter button is activated at the right time.
   闪光同步器用于确保相机的快门按钮在正确的时间被激活。
2. 2.The engineer used the flash synchronizer to capture the image during a lightning storm.
   工程师使用闪光同步器在雷暴期间捕捉到了图像。
3. 3. The flash synchronizer was crucial in preventing motion blur during the long exposure shot.
   闪光同步器在防止长时间曝光拍摄时产生运动模糊方面至关重要。