Results the value of the lumbar spine bone density reached peak when male or female was about 30 years old, and then, went down gradually with the increase of age.
结果腰椎骨密度值不论男性和女性，均在30岁左右达峰值，以后随年龄增长，骨密度值逐渐降低。
The influence of motor type to the thermal load and the effective material peak-value power density is analyzed, and the dimensions of the motor are selected.
通过对电动机结构型式与热负荷、有效材料峰值功率密度的分析，确定了电动机的外形尺寸。
The peak value of energy density of rock attenuates exponentially with distance.
岩杆中能量密度峰值随距离以指数形式衰减。
It is shown that the phase noise spectrum density shift periodicity with the length of external cavity and the peak value of power spectrum density varies considerably with the feedback coupling rate.
这表明相位噪声功率谱密度随外腔长度而周期性地漂移，且功率谱密度的峰值随外部反馈耦合率而发生很大的变化。
With density and nitrogen application being increased or sowing date being postponed, the fat content was slowly falling after the peak value, but increased at mature period.
随密度增加、施氮量增大或播期延迟，胚中脂肪含量均在峰值之后下降缓慢，成熟时脂肪含量均有增加。
With density and nitrogen application being increased or sowing date being postponed, the fat content was slowly falling after the peak value, but increased at mature period.
随密度增加、施氮量增大或播期延迟，胚中脂肪含量均在峰值之后下降缓慢，成熟时脂肪含量均有增加。
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