reef中文什么意思

短语和例子
reef1n.
1.【地质学；地理学】暗礁，礁脉；沙洲。
2.【矿物】矿脉；含金石英脉。n.
+更多解释...【航海】(便于减少受风面积的)缩帆部，榫帆部。 let [skake, take] out the reefs 放开帆篷。 take in a reef 收缩帆篷；〔比喻〕缩减(用费等)；慎重行事。vt.
收缩(帆篷)。

• reef is:    里夫群岛
• reef(to):    缩收(帆)
• abingdon reef:    阿宾登礁

例句与用法

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1. Alternatively, reefs may extend linearly across basins .
   此外，暗礁可横穿盆地呈带状延伸。
2. The motorboat cut across swift currents and skirted dangerous reefs .
   汽艇穿过激流，绕过险滩。
3. The ship struck on a reef .
   船触礁了。
4. A coral reef may build up to the surface of the tropical ocean .
   在热带海洋，珊瑚礁可一直筑到海面。
5. The main chromitite seam and the merensky reef do not outcrop well .
   主铬铁岩矿层及麦仑斯基矿层出露不好。

英文释义

名词

1. one of several strips across a sail that can be taken in or rolled up to lessen the area of the sail that is exposed to the wind
2. a submerged ridge of rock or coral near the surface of the water

动词

1. reduce (a sail) by taking in a reef
2. roll up (a portion of a sail) in order to reduce its area
3. lower and bring partially inboard; "reef the sailboat''s mast"