polar front是什么意思 polar front怎么读
polar front的英文翻译是什么意思，词典释义与在线翻译
Noun:- the front of an advancing mass of colder air
polar front的用法和样例
用作名词 (n.)
- Pollen grain trilobate in polar view.
花粉粒三裂在极面观。 - The angles refer to the polar view angle, i.e. the angle measured from the vertical.
角涉及到极面观的角，例如垂直物上测量的角。
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