年龄谱 meaning in English
age spectra
age spectrum
Examples
- Moreover , hrtem observations indicate that the process is very selective : even in apparently homogenous illite or i / s , some crystals went opening and some remain unchanged . and the replacement of k cations by alkylammonium cations is not restricted to crystal edges , but extends to entire interlayer . the above facts are the basis of alkylammonium cations method applied to the diagenetic age of sedimentary rock
Iaa法是以沉积岩的粒度?年龄谱为基础的，利用这种方法可以获得同一样品不同粒级伊利石的年龄，随着粒级的减小，样品的年龄也减小，当碎屑伊利石的含量趋于零时，可以得到自生伊利石的成岩年龄；烷基胺阳离子取代法是一种化学方法，利用烷基胺阳离子的选择性替代性，可以去除碎屑伊利石成分中的k离子，从而能够获得自生伊利石的年龄。 - The tiller - nodes of 6 species of rhizome grass , including leymus chinensis , hemarthriajaponica , arundinella hirta , calamagrostis epigeios , c . rigidula , hordeum brevisubulatum in songnen plain , can live at best for 2 to 5 years , and do 2 to 4 propagating generations which is the same as the age class of tiller in number . the age structure of population is an increasing model which the young tiller is more than the old at quantity and biomass . during the whole growing season , the age spectrum varies for each species
松嫩平原，羊草、牛鞭草、野古草、拂子茅、硬拂子茅和野大麦等6种根茎型禾草种群的分蘖节最多可以存活2 5个年度，可以进行营养繁殖2 4个世代，分蘖株的龄级数与分蘖节营养繁殖的世代数相同，在种群分蘖株的数量和生物量上，生长季的各个时期均以幼龄分蘖株占较大比例，呈现为明显的增长型年龄结构，各种类的年龄谱组成各异。