指植物上部或近轴的侧器的表面。

Designating the upper or adaxial surface of the lateral organs of plants, such as leaves.

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本文根据复射线法对通过介质天线罩的高斯波束场进行近轴近似分析。

Based on complex ray method, a paraxial approximation analysis of Gaussian beam transmission through a dielectric radome is presented.

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从近轴波动方程出发推导了窄带和宽带双曲正割脉冲光束的解析传输公式。

Starting from paraxial wave equation, analytical propagation expressions of hyperbolic secant pulsed beams with narrowband and broadband are derived.

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It's going to hug the x axis until it gets a very, very close.

它将会紧挨x轴,直到很近很近。

麻省理工公开课 - 固态化学导论课程节选