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1·The test results thow that the system has advantages of long recording time, better fidelity and good antijamming.

实验结果表明，该系统具有录音时间长、音质好、抗干扰性强以及使用方便等优点。

2·The research results thow that the strength of the surrounding rock is the most important factor which affects the deformation of the in-floor-rock roadways.

研究表明，增加巷道与煤层的法线距离对减小巷道的变形量虽有一定的作用，但这种影响并不明显。