By comparing SG changes of both frozen tissue samples and fresh samples it is to determine the sampling methods' effect on measurement of specific gravity of tissue.
通过比较冷冻后采样和低温直接采样脑组织比重的变化，比较采样方法对于测量结果的影响。
MethodsBrain water content of parietal cortex and striatum tissues are measured with specific gravity (SG).
使用比重法(SG)检测顶叶皮层和纹状体的组织含水量。
The specific gravity (SG) of gemstones is a constant widely used in gemological property charts.
宝石的比重(SG)不断被广泛使用在宝石特性图表。
The specific gravity (SG) of a gem is an indication of its density.
宝石的比重会（SG）指标示其密度。
The specific gravity (SG) of a gem is an indication of its density.
宝石的比重会（SG）指标示其密度。
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