The principles of fuel cell operation were first reported by British scientist Sir William Grove in 1839.

燃料电池的工作原理是英国科学家威廉·格罗夫爵士于1839年首先报告的。

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The visitors from Shen Li were here to help us understand the fuel cell operation, train us in its use and to help mount the fuel cell in the buses.

从申狸的旅客在这里帮助我们了解燃料电池的运作，它的使用培训，并帮助我们安装在巴士的燃料电池。

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In fact, when this feature is enabled, and the INSERT operation requires a new or reused block, DB2 will take an exclusive (x) lock on the block in order to add it to the target cell.

实际上，当该特性被启用，并且INSERT操作要求一个新的或重用的块时，DB 2将在块上采用一个独占的(X)锁，以便将它添加到目标单元。

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The Royal Swedish Academy of Sciences is honoring all three researchers for studies of the structure and operation of a kind of cell called a ribosome.

VOA: special.2009.12.08

After two unsuccessful corneal transplants, he underwent a pioneering stem cell operation that restored his vision.

CNN: Sight saved by stem cell surgery

Agents also seized cash, guns and drugs as part of their operation against the cell, based in Atlanta, Georgia.

BBC: Mexico drugs cartel suspects arrested in Atlanta area

If these genes are so important to the proper operation of the cell and we do not know what they do, it means we still have a long way to go before we fully understand cellular life - and that includes humans.

BBC: Is life just genes?