... 中心聚焦 center focus 中型投影仪 medium projector 中性阶梯减光板 neutral step weakener ...
双语例句
1
Three middle and small conference rooms. The medium room can include 40 person. The small room can include 20 person. Each room has projector, broadband and so on.
中小会议室有三个，中型可容纳40人，小型会议室可容纳20人，并设有投影仪和宽带等设施。
2
The flame projector can make Serial and Parallel, Stability is extremely arena. Widely used in all types of TV shows, large-and medium-sized SHOW indoor and outdoor performances, concerts and so on.