在现实中，尽管盖茨的头发总是乱糟糟的，又长着张娃娃脸，不修边幅，他可是个老练的生意人，每走一步都成竹在胸。
In reality, Gates is a smooth operator who, despite his uncombed hair, baby face and disheveled appearance, knew exactly what he was doing every step of the way.
目的对胸外伤后肺不张发生的原因进行探讨。
Objective To probe into the pathogenesis of atelectasis after chest trauma.
结果：颈、胸、腰骶椎通过无缝拼接能同时在1张X 线片上清晰地显示，达到了颈胸腰骶椎一次成像片的满意效果。
ResultsCervical, thoracic, and lumbar and sacral segments could clearly present at the same time on one X-ray film by seamless splicing, and the quality of one time radiograph was as good as one film.
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