Noise-reduction headphones block the screech of the drill and play a CD of your choice, and the specially constructed dental chair channels the sound waves from the music into a full-body massage.
隔音耳机使你听不到牙钻刺耳的噪音，倾听自己喜欢的音乐。 特别定制的治疗椅将音乐的声波转换成全身按摩。
Cadion gives two distinct reduction waves in the medium of 0.32m NaOH solution.
镉试剂在0.32 M氢氧化钠溶液中有清晰的还原波，峰电位在—o。
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