The Shenzhou-VII mission entered the countdown stage after the final check on the spacecraft, the carrier rocket and the ground operation system was completed Tuesday morning.
The record shows recorded on the sound carrier signal quality, that is, the final program of this recording system audio signal quality.
这个记录载体上记录的节目声音信号的质量，也就是这个录制系统的最终节目声音信号的质量。
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Thee Shenzhou-VII mission entered the countdown stage after the final check on the spacecraft, the carrier rocket and the ground operation system was completed Tuesday morning.