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1·That the notation of duplet and quadruplet are disunion in the publication, include music theory, textbook, and sheet music.

在许多音乐理论书籍、教材、乐谱等出版物中，二连音和四连音的记谱不统一。

2·Methods: Using mon-vessel screen method of thalassemia and relative value of G6PD detect thalassemia and G6PD deficiency for man and woman of detection of before marriage in 4268 duplet.

方法应用地中海贫血一管筛查法和G6PD比值法检测4268对婚前男女的地中海贫血和G6PD缺乏。

3·The elevator design has used the haulage type transmission and negative strength control technology, the essential spot USES the duplet bond control technology, has promoted the safety coefficient.

提升机设计采用了曳引式传动和负力控制技术，关键部位采用双键控制技术，提升了安全系数。