Best of all, it happens to be tilted nearly face on from our point of view, so we can see its delicate spiral structure laid out in spectacular detail.
而最棒的是，它恰好正对着我们的视野，让我们有机会一窥其精美螺旋型结构的惊人细节。
The basic principles and simulation methods of a null-coupler-based OADM are studied firstly, especially in the crosstalk of a Y-branch structure and the coupling properties of a tilted grating.
论文首先研究了零耦合器型OADM器件的基本原理与设计方法，特别是Y分支的串扰特性与斜光栅的耦合特性。
The structure of the forward-tilted trough increases the atmospheric instability and caused the severe convective weather.
高空前倾槽的结构加大了大气的垂直不稳定，是引起强对流天气的重要原因。
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