phase density 相密度
phase density spectrum [自] 相位密度谱
solid-phase density 固相密度
dense phase density 密相密度
liquid phase density 液相密度
liquid-phase density 液相密度
phase density spectra 相位密度谱
phase noise power spectrum density 相位躁声功率频密度
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Accurate determination of the gas phase density is very important for the reliability of adsorption measurements in both volumetric and gravimetric methods.
无论采用容积法还是重量法测量吸附平衡，准确计算气相氢密度对于实验结果的可靠性是至关重要的。
The relationships among perforation diameter, density, phase and casing strength are clarified.
明确了射孔直径、密度及相位等与套管强度的关系。
The decomposition of martensite and decrease of dislocation density in ferrite are the main reasons of deteriorating the mechanical properties of dual phase steel.
高温回火后，马氏体的分解软化以及铁素体中位错密度减小是导致双相钢性能恶化的主要原因。
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