科学家们很久以前就发现，昼夜光线的变化对于设置生物钟起着重要的作用。
Scientists have known for a long time that the light of day and the dark of night play important roles in setting our internal clocks.
黑色表盘的设计可快速方便地阅读过，即使在低光条件。它提供了在三点钟马克三共进Tritnite涂层夜光指针和小时刻度及放大日期显示功能。
It offers three-hand function with Tritnite-coated luminous hands and hour markers and a magnified date display at the three o'clock mark.
黑色表盘的设计可快速方便地阅读过，即使在低光条件。它提供了在三点钟马克三共进Tritnite涂层夜光指针和小时刻度及放大日期显示功能。
It offers three-hand function with Tritnite-coated luminous hands and hour markers and a magnified date display at the three o'clock mark.
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