joint density function [数] 联合密度函数
joint density of states 联合态密度
joint density and angle 节理密度和角度
joint probability density function [数] 联合概率密度函数
joint density of order statistics 顺序统计量联合密度函数
joint probability density [统计] [数] 联合概率密度 ; 联合机率密度
joint marginal density 联合边际密度
joint state density 联合状态密度
The valence-band offsets of such systems are calculated by frozen potential method and their Joint density of states has been computed by tetrahedron method.
在此基础上，用冻结势方法计算了该超晶格系统的价带带阶；用四面体方法计算了该系统的联合态密度。
Perhaps because of its role in calcium absorption, high-dose vitamin D did appear to help maintain bone density at the neck of the femur, the top of the thighbone near the hip joint.
也许是因为它促进钙质吸收的作用，高剂量维生素D确实显示出有助于维持股骨颈（靠近髋关节的大腿骨顶部）的骨密度。
Joint sealant gasket of expanded PTFE made of pure PTFE is a continuous low density cord.
膨胀聚四氟乙烯密封胶带是用聚四氟乙烯制成的低密度密封材料。
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