diachronism
n. 穿时性;跨代;[地质] 历时性
例句
It"s the first report that Luocheng Fm. diachronism in lower carboniferous series in Huanjiang area of northern Guangxi."
文摘:广西环江下石炭统罗城组具穿时性在桂北地区罗城组有关资料报道中属首次。