求翻译：如果高清摄像机比较多，又要求录像保存时间较长，推荐使用移动侦测录像，即画面中，有移动物体出现时，才开始录，没有移动时,可以不录。是什么意思？

If more high-definition cameras and asked for the video to save a long time, recommend the use of motion detection video screen, a moving object appears, start recording, did not move, you can not record.

If more high-definition cameras, videos are saved a long time, it is recommended to use motion detection recording, that is in the picture, there are moving objects appear only when you start recording, and does not move, you can be in.

If the high clear camera quite are many, also requests the video recording retention time to be long, the recommendation use migration detection video recording, namely in the picture, has when the motion object appears, only then starts the record, when does not have the migration, may not record.

If more HD video camera and video recording to save longer, recommended the use of motion detection recording, screen, moving objects appear, began, and did not move, can not record.

正在翻译，请等待...