Methods To find out the LD children in the whole school, do the VRT test on the LD team and paired control team, then analysis the data of the VRT score.
方法对某小学校的学习障碍（LD）儿童进行了筛查，并对筛出的LD 儿童和配对的正常儿童进行视觉保持实验（VRT）测试，并对比分析数据。
Through this article the features of VRT were introduced, and the application and development prospect of VRT in laboratory teaching of oral and maxillofacial surgery were also discussed.
简要介绍了虚拟现实技术的特点，重点探讨了虚拟现实技术在口腔颌面外科学实验教学领域中的应用与发展前景。
Through this article the features of VRT were introduced, and the application and development prospect of VRT in laboratory teaching of oral and maxillofacial surgery were also discussed.
简要介绍了虚拟现实技术的特点，重点探讨了虚拟现实技术在口腔颌面外科学实验教学领域中的应用与发展前景。
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