超声技术应用高频声波检测可疑肿块是固体还是液体。
Ultrasound uses high-frequency sound waves to determine if a suspicious lump is solid or fluid.
积雪专门吸收高频声波，于是声音变得更加安静，都有些变形了。
Specifically, snow tends to absorb higher frequency acoustical waves. As a result, sound becomes quieter and somewhat distorted.
太阳磁暴最严重的直接影响是北部航线飞机的高频声波通讯系统会发生中断。
The biggest immediate effect was the blackout of high-frequency voice-radio communications for planes flying far northern routes.
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