Environmental engineers are concerned with the disposal of human wastes.

环境工程师们关心人类排泄物的处置。

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Dispersions in solids are of little consequence to environmental engineers.

固体中的分散体对于环境工程师不重要。

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But to many researchers, fishery officials and even some fishermen, the fact that fish act as environmental engineers provides a compelling reason to protect them from exploitation.

但对很多研究员，渔业行政人员，甚至一些渔民来说，鱼作为海洋工程师这个事实为保护海洋使其免于被开发提供了一个不争的依据。

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President of the College of Environmental Engineers of Mexico and the Mexican National Engineering and Environmental Sciences.

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"Our economy has increasing demand for workers with advanced skills, such as teachers, health care workers, and environmental engineers, " he said.

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Utilities, though, will need all types of workers: engineers, environmental scientists and field personnel.

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