That the notation of duplet and quadruplet are disunion in the publication, include music theory, textbook, and sheet music. 在許多音樂理論書籍、教材、樂譜等出版物中，二連音和四連音的記譜不統(tǒng)一。
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. 方法應用地中海貧血一管篩查法和G6PD比值法檢測4268對婚前男女的地中海貧血和G6PD缺乏。
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. 提升機設計采用了曳引式傳動和負力控制技術，關鍵部位采用雙鍵控制技術，提升了安全系數(shù)。