慢性中耳炎的危险型可出现鼓膜松弛部的穿孔和鼓膜边缘性穿孔。
The dangerous type chronic otitis media occurs with pars flaccida and marginal perforations.
一种能产生穿孔纸带并在纸带边缘打印字符的电传打字接收机。
A teletypewriter receiver that produces perforated tape with characters along the edge of the tape.
慢性中耳炎的危险型可出现鼓膜松弛部的穿孔和鼓膜边缘性穿孔。
The dangerous type chronic otitis media occurs with pars flaccid and marginal perforations.
慢性中耳炎的危险型可出现鼓膜松弛部的穿孔和鼓膜边缘性穿孔。
The dangerous type chronic otitis media occurs with pars flaccid and marginal perforations.
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