Контекст - описание тех.характеристик кондиционера:
Sine wave drive compressor control system
Energy Savings
Noise Reduction
Powerful Heating
Uses the improved compressor control technology, which adopts a 180° conductance sine wave instead of the conventional 120° conductance waveform, resulting in a smoothing of motor rotation. This greatly reduces energy loss, contributing to higher efficiency, and thus higher energy savings.

Заранее спасибо!