• 1. annular: 环形的 | 环状的 | 环形
• 2. annular spring: 圆环弹簧
• 3. annular valve: 环形阀 | 环状阀 | 圆环阀 | 环孔阀

更多释义

• 1.See annular eclipse pictures.
  详见日环食图片。
  dict.yoduao.com
• 2.WHAT IS AN ANNULAR ECLIPSE?
  什么是日环食？
  dict.yoduao.com
• 3.Such events, which only blot out the middle of the Sun, are known as annular eclipses.
  像这样，太阳中部被遮盖的天象，就叫做日环食。
  dict.yoduao.com

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