Rinne-Test
发表于 2025-3-25 03:29:35
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Acupressure
发表于 2025-3-25 10:31:29
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旧石器时代
发表于 2025-3-25 15:18:13
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表两个
发表于 2025-3-25 17:43:41
Anwendungsbeispiel aus der Fahrzeugtechnik,mposition of the sprayed droplets. The most noteworthy result is the low mobility of the final positive ion (about 0.95 × 10. m./Vs) compared to that of the negative ion (about 1.77 × 10. m./Vs). The mass differences which this implies are discussed..In a supplementary experiment it was shown that a
Commemorate
发表于 2025-3-25 21:02:54
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背心
发表于 2025-3-26 04:01:04
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无情
发表于 2025-3-26 08:19:31
,Starre Körper mit kinematischen Bindungen,denuder and an ion mobility analyzer of cylindrical type which are connected in series. The air is irradiated by ionization source (.Po, 0.1 mCi) for obtaining charge equilibrium before introduction into both tubes..Before passing through the ion denuder, the charged fraction of particles with radiu
欢呼
发表于 2025-3-26 09:39:38
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跑过
发表于 2025-3-26 16:19:11
Roland Conrady,David Ruetz,Marc Aeberhardonly trace amounts. The processes of charge exchange, ion clustering and proton transfer are found to convert ions of primary air species into those characteristic of trace constituents in the mixture. For these measurements we have used a drift cell-mass spectrometer combination to mass analyze ion
慎重
发表于 2025-3-26 17:58:09
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