四聚体模型 - 引用次数：2参考来源 - 植物花器官发育模型及相关转录因子的研究 The advances in the model of floral organ development and the transcriptional factors related to flower development
Canon announced a quartet of camcorders earlier today at CES 2013, and while Vixia G20 is a tweaked version of the previous model, the R40 and R42 bringing a raft of new features like WiFi connectivity to the game.