Most camera battery clamps, including verticalshooting facilities, making it easier to use the 'portrait' mode of the camera.
大多数相机电池夹具包括垂直拍摄设施，使其更容易使用'肖像'模式的相机。
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For another, the lack of stabilizing vertical surfaces-a bane of all-wing designs, past and present-resulted in frequent lurches, making sharp shooting and accurate bomb delivery that much harder.