This article reviewed recent studies on molecular stucture,classification,study methods,distribution,function,modulating factors and gene modulation, focus of study and also unresolved problems of NTT.
英
美
- 本文僅就近年來(lái)國外有關(guān)方面的研究概況，從分子結構、分型、研究方法、分布、功能、調節因素、基因調控、以及研究焦點(diǎn)和尚待解決的問(wèn)題等諸方面做一綜述。
