日面的英文

• solar disk

• 日:    and
• 面:    face
• 日面极:    heliographic pole
• 日面图:    heliographic chart
• 日面北极:    north heliographic pole

例句与用法

1. We observe three sunspot groups on the disc .
   在日面上观测到三个黑子群。
2. This photo shows the sun in visible light with a few sunspots
   下图显示了在可见光波段下的太阳，日面上有不少黑子。
3. When venus was close to the sun s limb , its silhouette seemed to drip from the sun s limb and became a black drop
   黑滴现象指金星剪影与日面边缘出现像泪滴状的粘连。
4. Whenever it comes exactly between the earth and the sun , its silhouette will be found passing the sun s disc slowly . this phenomenon is called the transit of venus
   金星是内行星，每当它运行至地球和太阳之间，金星的剪影便会在日面缓缓掠过，这现象称为金星凌日。
5. Mercury is an inferior planet of the solar system . whenever it comes between the earth and the sun , the tiny silhouette of mercury will be found passing the suns disc slowly
   水星是内行星，每当它运行至地球和太阳之间，水星细小的剪影便会在日面缓缓掠过，这个现象称为水星凌日。