通过对等密度线的测定，查明了不同粒度铁粉的压坯密度变化，以及在不同压力下压坯密度变化的规律。
By measuring the equal density curves, the changes of compact density of iron powders with different particle size and different pressure were investigated.
方法采用光密度分析软件分别测定三叉神经痛患者以及健康人群全景片下颌体部标定区域内的光密度，按年龄、性别进行对比分析，观察两组骨密度的变化情况。
Methods The software of bone mineral density was used to detect both patients with trigeminal neuralgia and the normal subjects′ bone mineral density of the mandibular definite zone through DPT.
测定了这些复合材料的静、动态压缩性能，并通过材料压缩前后密度变化的测量，定量表征了材料的累计损伤。
The accumulation of damage in the composites is quantified through high-precision density measurements before and after compression.
根据离心机法测定土壤水分特征曲线随温度和干密度的变化情况。
In the different temperature and dry-density, the soil-water characteristic curve is established by the centrifuge test.
目的应用螺旋ct肺密度测定软件，根据肺密度变化，找出与放射性肺损伤之间的相关因素，探讨其应用价值。
Objective To evaluate lung density variation in radioactive lung injury by lung density detecting software of helical ct.
提示老年肾虚证与骨密度有直接相应变化的关系，骨密度测定可作为肾虚证本质辨证的客观评价指标和观察肾虚证治疗效果的参考依据。
It is indicated that kidney asthenia is closely related to bone density, thus bone density may be used as an objective index for diagnosing kidney asthenia.
通过胶体滴定法测定了CPAM电荷密度，研究了加填及加入CPAM后浆料悬浮液的电荷变化。
In this paper, colloid titration is used to measure charge density of CPAM.
测定阳性细胞数和平均光密度值，分析其变化趋势，并进行方差分析和t检验。
The number of positive cell and mean of optical density were detected and the trend change was analyzed. The variance analysis and t-test were also performed.
测定阳性细胞数和平均光密度值，分析其变化趋势，并进行方差分析和t检验。
The number of positive cell and mean of optical density were detected and the trend change was analyzed. The variance analysis and t-test were also performed.
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