KM4 is a large facility for space environmental simulation for the heat-vacuum test of man-made satellites.
KM 4是我国自行设计、制造的一座空间模拟设备，用于在地面上对各种人造卫星进行热真空测试。
KM4 is a large facility for space environmental simulation for the heat-vacuum test of man-made satellites.
KM 4是我国自行设计、制造的一座空间模拟设备，用于在地面上对各种人造卫星进行热真空测试。
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