Custodian
发表于 2025-3-23 17:24:00
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Herpetologist
发表于 2025-3-23 21:37:45
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BLAZE
发表于 2025-3-24 01:57:11
Laser Action in Stoichiometric Nd3+, Pr3+ and Er3+ Compoundsaser properties[ 1]. In these materials the neodymium enters as a constituent resulting in a very high concentration of active ions, of the order of 5 × 10. cm., and a very high optical gain allowing thus, effective miniaturization. In the neodymium phosphates laser emission has been obtained in lab
神圣将军
发表于 2025-3-24 02:58:19
Tunable Wavelength Selective Semiconductor Laser Systemsulation. Laser diodes with distributed Bragg reflector (DBR) oscillate with extreme spectral purity at the wavelength determined by the Bragg condition. Distributed feedback (DFB) lasers show similar behavior when a λ/4-phase shift is introduced for suppressing one of the two dominating mode
过分
发表于 2025-3-24 08:45:27
ors.Includes promising methods for testing under voltage (wi.This textbook covers in detail the problem of improving the reliability and service life of high-voltage equipment in electric power systems, mainly through testing, monitoring, and diagnostics, which support the timely repair or replaceme
FRAX-tool
发表于 2025-3-24 11:46:10
H. J. Eichler,H. Hamisch,B. Nagel,W. Schmidvolve during normal operation condition. This may lead to chemical processes associated with a gradual deterioration of the integral insulation properties. Finally, weak spots and, in extreme case, a breakdown might occur, which causes not only an unexpected outage of HV equipment but also physical,
Outspoken
发表于 2025-3-24 16:58:24
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Pessary
发表于 2025-3-24 22:13:22
H. Schülke,V. Sturmvolve during normal operation condition. This may lead to chemical processes associated with a gradual deterioration of the integral insulation properties. Finally, weak spots and, in extreme case, an ultimate breakdown might occur, which causes not only an unexpected outage of HV equipment but also
Pantry
发表于 2025-3-25 03:10:47
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合同
发表于 2025-3-25 04:43:25
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