胎龄
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fetal age range
胎龄范围
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The range of the foot bone ossification sites increased with the fetal age, and there was an obvious positive linear correlation between the ossification degrees and the conceptional age.
各足骨骨化灶范围随胎龄的增加而增大，骨化值与受精龄呈显著的正直线相关。
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