modulate
英 ['mɒdjʊleɪt]
美['mɑdʒəlet]
	    - vt. 调节;(信号)调制;调整
 - vi. 调制;转调
 
英英释意
- 1. change the key of, in music;
 - "modulate the melody"
 
- 2. of one's speech, varying the pitch
 
- 3. fix or adjust the time, amount, degree, or rate of;
 - "regulate the temperature"
 - "modulate the pitch"
 
- 4. adjust the pitch, tone, or volume of
 
- 5. vary the frequency, amplitude, phase, or other characteristic of (electromagnetic waves)