net primary production per gross primary production ratio 净初级生产比率
primary element and primary weight analysis 主成分和主分量分析
primary parametric resonance and primary resonance 主参数共振-主共振
Primary resonance and primary parametric resonance 主共振-主参数共振
21-Primary 层次分析法
21-Primary aminocorticoids 21-伯胺基皮质激素
3 primary colors theory 3原色原理
3D simulation of primary and secondary equipment 一、二次设备三维仿真
3-primary-reformer method 三一段转化工艺
4-oxadiazole (P-TTD) primary scintillator counting effecincy quenching 2-phenyl-5-(4’-biphenylyl)-1 淬灭
a primary air fan 一次风机
A Primary Research into Rural Tourism 乡村旅游初探
a primary standard facility of diffuse visual transmission density 漫透射视觉密度基准装置
A Primary Study on Lichens from Mount Yi 沂山地衣研究
a single piece of the primary PMLSM 单段初级永磁同步直线电动机
a suitable system of primary school basketball 轴承
Aberrant transcripts Abnormal expression of the FHIT gene in human primary 异常转录本
aboveground net annual primary production 地上净生产量
Aboveground net primary production 地上净初级生产力