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.