The hiccup is that very little energy is generated and the harvesting mechanisms are sometimes larger than the devices they power.

这项技术的缺点是，生成的能量很小，电能捕获和贮存设备有时甚至比所供能的设备还大。

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These flow features are extensive systems—sometimes hundreds of kilometers in total length—of interconnecting, twisting channels that seem to merge into larger, wider channels.

拥有庞大的系统是径流渠道的流动特征——有时总长达数百公里——这些系统由蜿蜒交错的渠道组成，而且这些渠道可能会并入更长更宽的渠道。

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They added that the canids were "larger, more slender and sometimes with a more whitish colouration".

他们还说这种犬科动物较一般金豺“更大，更苗条，有时毛色也更淡”。

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But the Afghans often have their own way of doing things. And that sometimes conflicts with U.S.-led efforts to forge a larger, more independent Afghan security force.

VOA: standard.2009.12.13

Pavlakos said sometimes the larger bars get discounted, versus the smaller denominated coins.

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The game played like this for much of the 1990s, with studios sometimes demanding larger cuts of opening weekend sales even as the films played in theaters for smaller amounts of time.

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" And "we sometimes forget the larger bonds we share, as one American family.

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