The handle can be pivoted sideways to ease inspection close the shell or locked on the straight ahead position for normal scanning.
手柄可转到一侧以轻松地检测靠近壳体，或锁定笔直向前的位置，用于常规扫描。
Look down with your eyes, your best head position should be similar to your natural posture when you are out of water looking straight ahead.
眼睛向下看，最佳的头部位置应当和你在水上自然平视的姿势差不多。
Place the front wheels in the straight-ahead position.
将方向盘定位，使前车轮朝向正前方。
Place the front wheels in the straight-ahead position.
将方向盘定位，使前车轮朝向正前方。
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