Anything in the stomach that affects the normal acidity and digestive processes, ranging from infections to acid reflux medicine to aging, may also interfere with B12 absorption, studies suggest.
研究表明，胃中任何影响正常酸度和消化过程的东西，从感染到倒酸药物再到衰老，都可能影响维生素b12的吸收。
Methods 70 cases pregnant women (pregnant age ranging from 13 to 40 weeks) were examined by color Doppler ultrasound to measure the umbilical artery blood flow quantities of the normal foetuses.
方法应用彩色多普勒超声检测70例孕妇（孕13～40周）的正常胎儿的脐动脉血流量。
Customers have confidence in Bock compressor technology in domains ranging from deep-freezing to normal refrigeration and air conditioning for buildings.
无论在低温冷冻，普通制冷还是建筑物空调领域，客户都非常信赖我们的压缩机技术。
Methods Fetal liver volume from 173 normal fetuses, ranging between 22~39 weeks old, was individually measured by three dimensional ultrasound.
方法应用三维超声平面体积测量法测量173例孕龄2 2～39周正常胎儿肝体积。
The results show that:in the low SNR conditions, the discrete distribution of the laser diode radar ranging data will significantly deviate from the normal distribution;
研究结果表明：在低信噪比条件下，激光二极管雷达测距数据的离散分布将明显偏离正态分布；
The results show that:in the low SNR conditions, the discrete distribution of the laser diode radar ranging data will significantly deviate from the normal distribution;
研究结果表明：在低信噪比条件下，激光二极管雷达测距数据的离散分布将明显偏离正态分布；
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