A.普通熱敏電阻 B.正溫度系統(tǒng)熱敏電阻 C.負溫度系數熱敏電阻 D.臨界溫度系數熱敏電阻
A.1.97% B.2% C.8% D.92%
A.激振器 B.激波管 C.水銀壓力計 D.周期函數壓力發(fā)生器