Should it not be the duty of engineers to imagine a new future where nature is brought back into the heart of the city.
作为工程师，设想一个自然生态环境入住市中心后的种种情形，本来就不是他们的职责。
He headed a group of engineers, whose duty was to develop frequency synthesizers and local generators for frequency hopping spread spectrum and satellite systems.
他还带领一个工程师团队，负责研究用于跳频扩频以及卫星系统的频率合成器和局部发生器。
He headed a group of engineers, whose duty was to develop frequency synthesizers and local generators for frequency hopping spread spectrum and satellite systems.
他还带领一个工程师团队，负责研究用于跳频扩频以及卫星系统的频率合成器和局部发生器。
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