Slow efficiency at threshold is observed to be nearly constant over the wide range.
在广域范围内观测到的低效阈值近似为常数。
The pain threshold of right hind limb, sciatic nerve function index (SFI) and pathological change were observed.
观察每组右后肢的痛阈、坐骨神经功能指数(SFI)及病理改变。
The results show: pulse power density from CO2 laser reaches air breakdown threshold through thrice reflecting focus system, and plasma radiation phenomena is observed in the experiment.
结果表明，脉冲co 2激光功率密度经三次反射激光聚焦系统达到空气击穿阈值，实验中观察到等离子体发光现象。
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