声强计

1.acoustimeter  2.phonometer  

声的英语翻译：

make a sound; reputation; sound; tone; voice
【化】 sound
【医】 phon-; phono-; sonus; sound

强的英语翻译：

better; by force; make an effort; powerful; strive; strong; stubborn

计的英语翻译：

idea; plan; calculate; count; meter; stratagem
【医】 meter