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.
线骨密度仪测定的椎体形态学:椎体高度的参考数据?
Vertebral morphometry by X-ray absorptiometry: Which reference data for vertebral heights?
分别采用DD60A和D51 密度仪测定制丝生产线冷却后和储丝后成品烟丝样品,并将两者的测定结果进行分析,对这两台仪器性能进行比较并作出评价。
The samples of cut tobacco after cooling and storing were tested with DD60A and D51, the(results) were analyzed and the performances of these two densimeters were compared and evaluated.
方法:在循证医学指导下对福利院369名老年人中3年间发生骨折的病人进行X线摄片和骨密度、骨生化代谢指标测定。
Methods: Using X-ray; bone mineral density index and bone biochemistry measure 369 cases of old fracture who have been fracture in three years through means of Evidence-based medicine.
通过测定其相对密度、线收缩率和抗弯强度,研究温度对材料致密化和强度的影响。
The influence of densification and strength for sintering temperature were investigated by density, linear shrinkage and flexural strength were measured.
用于快速测定各种纱线的线密度。
Used for testing the linear density of various yarn quickly.
通过测定其相对密度、线收缩率、拉伸强度和硬度,研究了烧结温度对合金性能的影响。
The influence of sintering temperature on mechanical properties of alloys was investigated by measuring their density, linear shrinkage, tensile strength and hardness.
通过测定其相对密度、线收缩率、拉伸强度和硬度,研究了烧结温度对合金性能的影响。
The influence of sintering temperature on mechanical properties of alloys was investigated by measuring their density, linear shrinkage, tensile strength and hardness.
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