late 14c., "act of singing or making music," from Old French modulation "act of making music" (14c.), or directly from Latin modulationem (nominative modulatio) "rhythmical measure, singing and playing, melody," noun of action from past participle stem of modulari "regulate, measure off properly, measure rhythmically; play, play upon," from modulus (see module). Meaning "act of regulating according to measure or proportion" is from 1530s. Musical sense of "action of process of changing key" is first recorded 1690s.
实用例句
1. The famine turned the normal modulation of climate into disaster.
正常的气候变化因饥荒而成了灾难。
来自柯林斯例句
2. The soft modulation of her voice soothed the infant.
她柔和的声调使婴儿安静了.
来自《现代英汉综合大词典》
3. Frequency modulation does not allow static to creep in.
频率调制不允许静电干扰混入.
来自辞典例句
4. The nodal modulation is a very significant feature of the tides.
