单词	nature preservation
释义	nature preservation 自然保护
随便看	time delay characteristics time-delay characteristics time delay circuit time-delay circuit time delay closing time delay closing relay time-delay closing relay time delay command time-delay command time delay compensation time-delay compensation Time delay compensa-tion time delay constant time-delay constant time-delay contact time-delay contactor relay time delay control time-delay control time delay correction time delay correction means time delay correlation time delay de-energizing time delay-dependent time-delay dependent time-delay-dependent