Piezoelectric ceramic is used as a second noise source to reduce the volume and mass of the headset.
次级声源采用压电陶瓷驱动，可有效减轻耳罩体积和重量。
The results show that the ceramic coating obtained under the condition of DC impulse source is more compact than that of AC impulse source.
结果表明：直流脉冲电源条件下取得的陶瓷膜比交流脉冲电源条件下取得的陶瓷膜更致密，因而具有更佳的耐腐蚀性；
The effect of a volumetric heat source induced by pulse laser heating in the temperature fields of a fine round ceramic bar was investigated experimentally and theoretically.
用脉冲激光模拟微小圆柱陶瓷棒的脉冲内热源情形，实验研究了脉冲内热源对圆柱陶瓷端面温度场变化施加的影响。
A brief expression of sound field induced by an annular transducer made of concave spherical piezoelectric ceramic is derived by introducing a negative sound source.
引入负声源，导出了凹球面状环形换能器声场的简洁表示式。
A brief expression of sound field induced by an annular transducer made of concave spherical piezoelectric ceramic is derived by introducing a negative sound source.
引入负声源，导出了凹球面状环形换能器声场的简洁表示式。
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