As a result, the total population was divided into four groups: control (44), low exposure (48), middle exposure (48) and high exposure (48).
因此所调查人群分为四组，其中对照组44人，低暴露组48人，中暴露组48人，高暴露组48人。
Oregon ranks in the middle third for all of our pollution metrics, including 29th in EPA toxic waste violations and 33rd in toxic exposure, according to the RSEI index.
根据RESI指数，对于我们的污染指标俄勒冈州排名三分之一，包括排名29位的EPA有毒物质排放和排名33位的毒素暴露。
Recently, Figueiro ran an experiment to see how exposure to morning light affects the circadian clocks of middle school students.
最近，菲戈罗进行了一项实验。她通过实验观察上午的阳光是如何影响中学生的生物钟的。
As the sun passed overhead then sank into the west it burned a bright path across the middle of the sky in this long-exposure image.
在这张长曝光片中，太阳划过头顶，渐渐西下，划出明亮的光带。
In auto mode and program mode, the camera usually chooses middle-of-the-road aperture and shutter Settings, getting a good exposure but avoiding any extremes-and any creativity as well.
在自动模式和程序模式之下，相机一般会选择一个不大不小的光圈和快门来进行适当的曝光，但这样既不会有任何极端参数，也就更失去了创造的机会。
The company expects a big part of that exposure -- $178 billion of trades to reduce banks' capital needs -- will be terminated by the middle of next year.
该公司预期这一敞口中的很大一部分（1,780亿美元的交易，可降低银行的资本需求）将于明年年中终止。
In the middle of the line is larger tick with a 0 underneath, this represents a correct exposure.
在中部有个大的坐标，下面写着0，这表示正确的曝光位置。
Objective To evaluate comprehensively the exposure and damage to the cerebellopontine angle region by the middle cranial fossa approach.
目的对经中颅窝入路小脑脑桥角区的显露程度及其损伤程度进行定量综合评价。
The loss amount of caprocks was huge because of the exposure and chemical erosion during the Caledonian tectonic movements around the upheaval in the middle of Yunnan province.
下古生界在加里东运动暴露期间，黔中隆起及周缘盖层化学损失量巨大。
The antioxidant enzymes other than CAT were more sensitive to the pollutants exposure with concentrations of DWSF and the middle metabolites accumulated in the spleen.
结果表明，随着DWSF污染物及其中间代谢物在褐菖鲉脾脏中浓度的积累，各抗氧化酶对污染物暴露较为敏感。
Objective:To totally resect the enormous tumors of the middle ear and the lateral skull base and repair the surgical space simultaneously under well exposure of the tumors.
目的：探讨完整切除中耳侧颅底区巨大肿瘤以及同期修复术腔缺损的手术途径。
Objective:To totally resect the enormous tumors of the middle ear and the lateral skull base and repair the surgical space simultaneously under well exposure of the tumors.
目的：探讨完整切除中耳侧颅底区巨大肿瘤以及同期修复术腔缺损的手术途径。
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