使用方法：洁面后，取适量避开眼、唇四周均匀涂抹于脸部，涂抹厚度大约1至2毫米，10至15分钟后，再以清水洗净。

Directions: After facial wash, apply a proper amount evenly to face. Avoid eye and lip areas. Recommended mask thickness: 1-2mm. Relax for 10-15 min. Rinse thoroughly.

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所述桶形胶套两端密封唇边的长度要大于胶套的厚度。

The length of the sealing lip sides at two ends of the drum-shaped rubber sleeve is greater than the thickness of the rubber sleeve.

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结果：上颌骨内埋伏阻生牙33颗，均能准确无误地显示出埋伏牙的方向、形态、数目、唇腭侧骨质厚度。

RESULTS: It was found that the number, size, shape, location, Angle between crown and root of all the 33 impacted teeth could be displayed accurately.

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