最近，一个令人不安的研究显示，科学家预计2050年将有接近50亿的人患近视。
According to a troubling recent study, scientists are predicting that by 2050, close to five billion people will be nearsighted.
该放大器具有自动调节调节装备，确保可靠的操作，即使在令人不安的金属零件非常接近的探测器线圈。
The amplifier is equipped with an automatic adjustment regulator that ensures reliable operation even when disturbing metal parts are in close proximity to the detector coil.
该放大器具有自动调节调节装备，确保可靠的操作，即使在令人不安的金属零件非常接近的探测器线圈。
The amplifier is equipped with an automatic adjustment regulator that ensures reliable operation even when disturbing metal parts are in close proximity to the detector coil.
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