四魔
四魔-
三等正轴测中的四段式魔阶图
The Drawing of Four-Flight Magical Stair in Isometric Projection
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四端口的魔T器件由于很容易实现等功率同相／反相的功分作用，在微波技术领域中有着广泛的应用。
As we know , the four port magic-T structure is easy to achieve in-phase / out-of-phase power distribution and plays an important role in the microwave technology .
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我们需要声东击西，赫敏干脆地说，这时离星期四下午的两节魔药课越来越近了，有人打掩护，
What we need , said Hermione briskly as Thursday afternoon 's double Potions lesson loomed nearer , is a diversion .