by gravity中文什么意思

靠重力

重力流动

• gravity:    n. 1.认真，严肃，庄重。 2.重 ...
• gravity high, gravity maximum:    重力高
• gravity low, gravity minimum:    重力低

例句与用法

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1. The stone rolled down the mountain by gravity .
   这块石头由于重力作用而滚下山。
2. This water was distributed to and over the fields primarily by gravity flow .
   这些水主要靠自流灌溉到田里。
3. The beam of light is attracted by gravity and follows a curved path rather than a straight line .
   光束受引力吸引，不沿直线而沿弯曲路线传播。
4. The stone rolled down the hill by gravity
   石头由于重力作用而滚下山去。
5. The stone rolled down the hill by gravity
   石头在重力作用下向山下滚去。