analytical engineering phase 分析设计阶段
phase analytical method 物相分析方法
The stability of the helical equilibrium is analyzed with phase plane method, and an analytical criterion of stability is revealed.
用相平面法分析螺旋线平衡的稳定性，导出解析形式的稳定性条件。
Solid phase spectrophotometry is a new, simple, fast and sensitive trace analytical method.
固相分光光度法是一种简单、快速、灵敏的新型痕量分析手段。
The analytical expressions for the phase and group velocities of the axial optical field, accelerating potential and energy gain etc. are derived and are used to make numerical analysis.
给出了轴上光场的相速度和群速度、加速电位及电子能量增益等的解析表达式，并作了数值计算和分析。
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