Even with the protective gear, the scientists often operated at the edge of safety.

即使有保护装置，科学家们仍然常常是在危险的边缘进行工作。

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Transaxles give their best fuel economy when operated in the top cruise gear and with steady pressure on the gas pedal.

当运行在定速巡航状态和恒定的压力作用在油门踏板上时，此时驱动桥能有最佳燃油经济性。

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A kind of selective procedure of change gear which is operated more conveniently is presented. It has a better generality. It can quickly selects all compositions whose accuracy are given.

介绍了一种操作更方便的、通用性更好的挂轮选择程序，它可以迅速地选择给定精度下的所有组合。

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The brakes worked well, and the gear settings operated just like on a standard bike.

BBC: Rent an electric bike in London

The momentum is due in part to greater taxonomy efforts, a growing number of researchers involved in describing new species, and new technologies allowing them to access previously unexplored areas (including improved diving gear and remotely operated submersible vehicles).

UNESCO: THEMES