... 液体比重计 hydrometer 液体标准源 liquid standard source 液体超声延迟线 liquid ultrasonic delay line ...
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liquid standard radioactive source 液体标准源
Thorium Liquid Standard Radioactive Source 钍液体放射源标准物质
standard liquid-Helium noise source 液氦标准噪声源
standard liquid-nitroger Noise source 液氮标准噪声源
·2,447,543篇论文数据，部分数据来源于NoteExpress
A full band WR28 matched load immersed in the liquid nitrogen is served as the noise radiation source of the standard.
一个全频带WR28匹配负载浸入液氮中作为该标准的噪声辐射源。
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