sound wave; acoustic wave
Tone colorsmāmámǎmàma
Meanings
1 sense · 4 examplesnoun
mechanical wave that can produce an auditory sensation; acoustic wave
technicalIn physics, this refers specifically to longitudinal mechanical waves with frequencies between 20 Hz and 20,000 Hz (the audible range for humans). Sound waves require a medium (solid, liquid, or gas) to propagate and cannot travel through a vacuum.
Shēng声
bō波
zài在
kōng空
qì气
zhōng中
de的
chuán传
bō播
sù速
dù度
yuē约
wéi为
měi每
miǎo秒
sān3
bǎi4
sì0
shí米
。
Sound waves travel at approximately 340 meters per second in air.
Chāo超
shēng声
bō波
shì是
yī一
zhǒng种
pín频
lǜ率
gāo高
yú于
èr2
wàn0
hè0
zī0
de0
shēng赫
bō兹
的
声
波
。
Ultrasound is a type of sound wave with a frequency higher than 20,000 hertz.
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Shēng声
bō波
bù不
jǐn仅
néng能
zài在
kōng空
qì气
zhōng中
chuán传
bō播
，
yě也
néng能
zài在
shuǐ水
zhōng中
hé和
gù固
tǐ体
zhōng中
chuán传
bō播
。
Sound waves can propagate not only in air, but also in water and solids.
Yī医
shēng生
lì利
yòng用
shēng声
bō波
lái来
jiǎn检
chá查
bìng病
rén人
de的
xīn心
zàng脏
。
Doctors use sound waves to examine patients' hearts.