basic population是什么意思_basic population中文

basic population中文什么意思

basic: Basic ＝ Basic English.
population: n. 1.人口；人口总数；全体居民；人口的聚居。 2.物 ...
basic breeding population: 基本育种群落
basic reference breeding population: 基础参考育种群体
population: n. 1.人口；人口总数；全体居民；人口的聚居。 2.物的全体[总数]；【生物学】虫口；种群(量)；群体；族，组，个数；【统计学】对象总体，全域。 3.【物理学】布居；密度。 4.〔罕用语〕殖民。 varietal populations 品种群体。

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Difference in basic population structure of the ethnic groups in kazakhstan
哈萨克斯坦不同民族在人口基本结构方面的差异
The large basic population courses that the speed of population increasing is hard to drop down rapidly in short time
人口基数大，又使人口增长速率在短时期内难以大幅度下降。
According to the population equilibrium equation and utilize the population poly - factor compounding projection , this paper expounds the basic population projection methods and steps in the exoteric regions so as to provide the concrete population forecast practice some instructions
本文依据人口平衡方程，运用人口分要素组合预测法，阐述了开放区域人口预测的基本方法和步骤，从而为具体的人口预测工作提供思路借鉴。
Taking the population calculated from the basic seedlings formulas self - drafted of the dry - land seedling - raised on plastic trays ( dpt ) with scattered - planting in double - season rice as the middling population , one population of the higher and the lower were set respectively , and the yields and yield formations of these different basic populations were compared
摘要以自拟基本苗公式计算出的苗数为中等群体，设置上下水平基本苗数各1个为对照，比较了早、晚稻塑盘早育抛栽不同群体起点产量及其形成的差异。

basic population中文什么意思