They did this by putting pieces of silicon or one of a number ofother solid materials inside a shoe-box-sized cavity and zapping the materialwith microwaves from a metal tip.

他们将硅碎片或者其他种固态物质中的一部分放入一个鞋盒大小的腔中，并且用金属末端放出的微波来轰击这些物质。

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One and a half stages of a subsonic compressor were simulated with steady and unsteady calculation, comparing the performance with different combination of tip leakage and seal cavity.

本文对某亚音轴流压气机的中间三排叶片进行定常与非定常数值模拟，分析在不同的动叶叶顶间隙和静叶气封间隙组合下压气机的流动特性。

youdao

They did this by putting pieces of silicon or one of a number of other solid materials inside a shoe-box-sized cavity and zapping the material with microwaves from a metal tip.

ECONOMIST: Ball lightning