下颌前移后，舌骨向前上移动的方向和距离是治疗OSAHS成功的一个观测点。

After submaxilla antedisplacement, direction and distance of hyoid bone is a view point of curing OSAHS patients.

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对焦准确性有所改善，但在近距离和F1.4时，尤其在低反差时，对焦就会稍有前移。

Focus accuracy was generally impressive, although with a certain tendency towards slight front-focus at close distances and F1.4, especially with low-contrast subjects.

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