?磁控管产生器
... 磁控管产生器 magnetron generator 磁控管真空计 magnetron vacuum gauge 磁控管真空计 magnetron vacuum gauge ...
They have found that heating the sand for about 90 seconds with a microwave generator (known as a magnetron) designed for a household microwave oven produces a thermal image that is detectable for 15-20 minutes.
ECONOMIST: Landmines
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