The total ozone amount at the area of Zhongshan Station has been decreasing during recent 7 years, which is similar to the trend of the global ozone variation.
近7年来，中山站地区的大气臭氧总量有减少趋势，与全球大气臭氧总量变化趋势相同。
Methods the ambulatory blood pressure of 7 patients with artery stenosis was tested before and after endovascular treatment, and the coefficient of variation (CV) was calculated.
方法使用动态血压监测仪测量7例血管内支架置入术患者支架置入前后的动态血压值，计算变异系数。
As a dual-seat variation, the FT-7 has numbers of differences to the F-7.
作为一种双座改型，歼教-7的研制中对歼-7的机体做了较多修改。
Variation of seed storage protein subunits from laser treatment offsprings of Jimai 7, Jimai 18, Jizao 15 was analyzed by SDS-PAGE.
本研究采用SDS—PAGE分析了冀麦七号、冀麦18和冀早15三个品种激光后代籽粒贮藏蛋白的变异情况。
There was a significant variation between individual donors. Overall, 70% (7/10) of the calves exhibited follicle development.
供体间个体差异很大，70% （7/10）的个体对激素诱导反映良好。
How does HIV subvert the immune 7 sys-tem Although HIV kills the immune cells sent to kill the virus, there is widespread variation in the rate at which HIV infected people become ill with AIDS.
艾滋病病毒能杀死对付自己的免疫细胞，但艾滋病病毒携带者患艾滋病的快慢却大不相同。
How does HIV subvert the immune 7 sys-tem Although HIV kills the immune cells sent to kill the virus, there is widespread variation in the rate at which HIV infected people become ill with AIDS.
艾滋病病毒能杀死对付自己的免疫细胞，但艾滋病病毒携带者患艾滋病的快慢却大不相同。
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