实验结果表明，液氢的超声衰减的温度依赖特性主要取决于体积粘滞效应。
The results indicate that the temperature dependence of ultrasonic attenuation in liquid hydrogen is mainly determined by volume viscosity effect.
给出了该温度计在液氮、液氢和液氦中反复锻炼后在水三相点温度时的阻值的稳定性。
A good stability of temperature resistance values at the three-phase point of water is obtained when the thermometers are tested in liquid nitrogen, liquid hydrogen and liquid helium repeatedly.
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