Stem cells a lesson from dedifferentiation.干细胞:从脱教训.The rest of phloem also produced callus through dedifferentiation. In addition, there was callus from xylem.残存的韧皮部也可以脱分化形成愈伤组织, 此外, 还存在愈伤组织源于木质部的情况....
He is course tutor in archaeology at the University of Southampton.他是南安普敦大学考古学课程导师。A distinction must be made between archaeology proper and science-based archaeology.必须区分考古学本身和以科学为基础的考古学。She teaches archaeology at the u...
flight vehicle propulsion system飞行器推进系统The nineteenth century witnessed a revolution in ship design and propulsion.19世纪船舶设计和船舶动力领域发生了重大的变革。...the submarine's propulsion system.潜水艇的推进系统Adduction of the upper arm to m...