Digital TV has started as a free broadcast medium as well.
数字电视系统也是由信号广播发起。
In this method "free water" samples are taken directly in the aquatic medium.
在这种方法中，“自由水”样品是直接在水介质中取得的。
The neck is strong, muscular, of medium length and free of throatiness.
颈部结实，肌肉发达，中等长度，无赘肉。
The medium is animal component free.
该培养基不含动物成分。
The medium is animal component free.
该培养基不含动物成分。
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