·2,447,543篇论文数据，部分数据来源于NoteExpress
Sing-around method for sound velocity measurement have found wide acceptance because it is simple in circuitry and high in accuracy.
环鸣测量声速法具有电路简单、使用方便、测量精度高等优点，已广泛地应用。
youdao
应用推荐
模块上移
模块下移
不移动