primary sector

用法例句

A set of experimental apparatus was es ta blished to study the induction period of solution primary nucleation by laser me thod.

建立了一套用激光法测定溶液初级成核诱导期的实验装置,将诱导期与经典的初级成核理论相结合,对涉及溶液初级成核的多种性质进行了定量研究,包括初级成核自由能、临界晶核的尺寸和分子数、固液界面张力、接触角等。

A set of experimental apparatus for studying solution primary nucleation was developed,through which the induction time of primary nucleation of supersaturated solution was measured by laser method.

研究开发了一套溶液初级成核的实验装置,用激光法测定过饱和溶液初级成核的诱导期,并使诱导期与经验的初级成核关联式相结合,确定初级成核级数。

Taking the multi-stratal view of language as its theoretical basis,this paper attempts to explore the ranked constituent analysis at two levels(i.

以层次的思想作为理论基础,探讨系统功能句法分析中的分级成分分析,重点对表达层和内容层的分级成分进行讨论。