zone of primary sulphide  原生硫化带

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