• 1. directional derivative: 方向导数 | 方向微分 | 方向微商
• 2. maximum directional derivative: 极大方向微商 | 极大方向导数
• 3. Second-order directional derivative: 二阶方向导数

更多释义

• 1.And that's basically, yes, that's the directional derivative.
  基本上是的，那就是方向导数。
  dict.yoduao.com
• 2.Well, it's actually the directional derivative in that direction.
  它其实是那个方向的方向导数。
  dict.yoduao.com
• 3.The directional derivative according to the vector fields was introduced.
  引入了相应于矢量场的方向导数。
  dict.yoduao.com

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