针对目前储罐底板漏磁检测中存在的问题，提出研制移动机器人代替人力驱动或人工辅助电力驱动方式进行储罐底板漏磁扫描检测。

Based on the magnetic flux leakage (MFL) technique, a magnetic flux leakage testing instrument for corrosion in the tank floor plate driven by electric motor is developed.

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正如铁路网和电力网分别驱动19世纪和20世纪的经济转型一样，今后几十年高速宽带将改变经济方式。

Just as railway networks drove an economic transformation in the 19th century, and electricity networks in the 20th century, so high-speed broadband will transform economies in decades to come.

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驱动电梯的方式很多，如皮带轮，水力，蒸汽，电力等。

And there was a wide range of methods used to drive them, too - pulleys, water and steam power, electricity and so on.

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