Based on laser threshold value method, central wavelengths of two kinds of phosphate laser glass used in high-power solid-state laser segment amplifiers are tested.
利用激光阈值法对两种应用于高功率固体激光片状放大器中的磷酸盐激光玻璃的中心波长进行了实验测试。
The influences of the filler metal powder on the laser power density threshold value, weld formation and process stability were studied during CO_2 laser welding of aluminum alloy.
研究了填充合金粉对CO_2激光焊接功率阈值、焊缝成形和焊接过程稳定性的影响。
The emphasis of this project is to present threshold value of blasting vibration strength to ensure structure and apparatus of nuclear power station safe.
本项目重点在于提出确保核电站结构及设施安全的爆破振动强度的阈值。
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