1.正是数字传输为克服这种噪声环境提供了一种有力 的方法。 It is digital transmission that provides a powerful method for overcoming the noisy environment. 2.数字传输正是为克服这种噪声环境提供了一种有力 的方法 It is for overcoming the noisy environment that digital transmission provides a powerful method. 3.最高频率为34kHz的话音信号是用64kHz的信号来表 示的,这是一个我们昨天所学的事实 The speech signal of maximum frequency 3.4 kHz has been represented by a signal of frequency 64 kHz, a fact that we learned yesterday.1. 正是数字传输为克服这种噪声环境提供了一种有力 的方法。 It is digital transmission that provides a powerful method for overcoming the noisy environment. 2. 数字传输正是为克服这种噪声环境提供了一种有力 的方法。 It is for overcoming the noisy environment that digital transmission provides a powerful method. 3. 最高频率为3.4kHz的话音信号是用64kHz的信号来表 示的，这是一个我们昨天所学的事实。 The speech signal of maximum frequency 3.4kHz has been represented by a signal of frequency 64 kHz, a fact that we learned yesterday